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Virtual Card Top-Up Tutorial: USDT Top-Up in 5 Steps

Beginner-friendly · Includes the complete guide to "what is USDT / how to obtain USDT / which chain to choose"

First, Understand: What Is USDT?

USDT (Tether) is a "stablecoin" — its price is pegged to 1 US dollar (1 USDT ≈ $1). It runs on blockchains (commonly TRC20 / ERC20 / BEP20 and other networks), with fast transfers, traceability, and zero cross-border friction.

For Chinese users, USDT is the relay that gets credited fastest and settles with the most predictable finality in cross-border payments. You need to hold USDT yourself first, then use it to top up RDVCC Virtual Credit Card — we only provide the top-up entry point and do not buy, sell, broker or exchange USDT.

Key point

USDT is not a "wildly fluctuating cryptocurrency" — its price stays basically stable around $1. Buying USDT is not "crypto speculation" but "a relay for cross-border payments".

5-Step Top-Up Flow

  1. 1

    Get your dedicated top-up address in the RDVCC Virtual Credit Card dashboard

    Account center → Top up → choose a network (ERC20 recommended) → the page shows your dedicated top-up address right away (permanent, yours only, reusable)

  2. 2

    Prepare USDT (you must already hold it)

    RDVCC does not buy, sell or exchange USDT. You need to obtain USDT yourself through channels permitted where you live. Each top-up must be at least 35 USDT (every time, not just the first).

  3. 3

    Transfer the USDT to your RDVCC Virtual Credit Card top-up address

    In your exchange / wallet choose "Withdraw / Send", select the same network as on the top-up page (e.g. ERC20), paste the top-up address and check the first and last 4 characters. Exchanges deduct their withdrawal fee from the amount, so send about 2 USDT more than you want credited.

  4. 4

    Wait to be credited (usually a few minutes)

    No order to place and no amount to enter — the funds are recognised by address and credited automatically, minus the 0.5% top-up fee (flat, no tiers). TRC20 / BEP20 usually take 1–5 minutes and ERC20 2–10 minutes, other networks 1–30 minutes; the top-up page shows the time for the network you choose.

  5. 5

    Balance credited — open cards / top up cards

    Once credited, your RDVCC Virtual Credit Card account balance can be used to: ① open new cards ($1+ each); ② top up existing cards (card top-up fee from 2%, tiered by monthly volume down to 0.5%); ③ request a Prepayment Refund for anything left over, returned via the payment processor (account kept, flat $2 per refund, payment processor fee included).

How Do I Send USDT to the Top-up Address?

Withdraw from the wallet or exchange where you hold USDT — usually credited automatically within a few minutes

  1. 1Confirm you already hold at least 35 USDT (plus the exchange withdrawal fee)
  2. 2Open Account → Top up in RDVCC, choose a network and copy your dedicated top-up address
  3. 3In your wallet or exchange, choose "Withdraw / Send"
  4. 4Select the same network as on the top-up page (e.g. ERC20), paste the address you just copied (never type it by hand) and check the first and last 4 characters
  5. 5Enter about 2 USDT more than you want credited (the exchange deducts its withdrawal fee from it), then submit and pass the security check
  6. 6Wait to be credited: TRC20 / BEP20 usually take 1–5 minutes and ERC20 2–10 minutes; once credited, the top-up page shows a notice and you get an email
⚠️ Transfer Cautions
  • · The network must match the one chosen on the top-up page — funds sent on another network or in another token may not be credited
  • · Always copy and paste the address; never type it or read it off a screenshot
  • · Each transfer must arrive as ≥ 35 USDT — anything below 35 will not be credited; exchanges deduct a withdrawal fee, so send a little more
  • · Send 1-3 months of usage at once to spread out the on-chain fee

ERC20, BEP20, TRC20 and 3 More Networks — Which One?

ERC20 (recommended)

Ethereum
Exchange withdrawal fee (varies by exchange)
Varies by exchange (about 0.5 USDT on Binance)
Credited in
Usually 2–10 minutes

Ethereum mainnet — supported by almost every exchange and wallet

BEP20 (recommended)

BNB Smart Chain
Exchange withdrawal fee (varies by exchange)
Lowest (about 0.01 USDT on Binance)
Credited in
Usually 1–5 minutes

BNB Smart Chain — supported by Binance and other exchanges, with the lowest fees

TRC20

TRON
Exchange withdrawal fee (varies by exchange)
Medium, commonly 1–1.5 USDT (about 1.5 on Binance)
Credited in
Usually 1–5 minutes

Widely used, supported by most exchanges; USDT only

Solana

Solana
Exchange withdrawal fee (varies by exchange)
Low
Credited in
Usually 1–5 minutes

Low fees, credited fast

Arbitrum

Arbitrum One
Exchange withdrawal fee (varies by exchange)
Low
Credited in
Usually 3–30 minutes

Low fees; occasionally slow to be recognised, up to about 30 minutes

Polygon

Polygon POS
Exchange withdrawal fee (varies by exchange)
Low
Credited in
Usually 3–10 minutes

Low fees

USDT Deposit Fee Rate

A flat 0.5%, no tiers — the same rate for every amount

Top-up amountFee rateExample
< 35 USDTNot allowedMinimum 35
≥ 35 USDT0.5%Deposit 500 → 497.50 credited

FAQ

What is USDT?
USDT is a stablecoin issued by Tether: $1+ ≈ 1 US dollar, with a basically stable price. It is the most mainstream "dollarized" asset in crypto — fast on-chain transfers, low costs, well suited as a relay for cross-border payments.
Why does RDVCC only accept USDT top-ups, not bank cards or other local payment methods?
Two reasons: ① RDVCC serves users in many countries with a single top-up method; local-currency channels (cards, transfers, e-wallets) are regulated differently in every country, and we don't operate them; ② a USDT top-up settles on-chain — it is usually credited within minutes, is traceable and costs little. The first time takes a few extra minutes; after that, a top-up is a matter of minutes.
How do I top up a Visa virtual card?
Two steps: ① first top up your RDVCC Virtual Credit Card account with USDT (this tutorial); ② on the card management page select the target Visa card, click "Top up", and enter the amount (the equivalent limit goes onto the card, with the card top-up fee deducted from the account balance on top: tiered by calendar-month volume, from 2% down to 0.5%).
How long until an account top-up is credited?
Counting from when your exchange shows the withdrawal as "Completed": TRC20 / BEP20 usually take 1–5 minutes and ERC20 2–10 minutes, other networks 1–30 minutes (the top-up page shows the time for the network you choose). The funds are recognised by address and credited automatically — no order needed. A card top-up from the balance is instant (no network delay).
Can I top up a virtual card directly with a bank transfer, bank card or e-wallet?
No. RDVCC accepts USDT top-ups only, and you need to hold that USDT yourself — we do not buy, sell or exchange it. What you can do is buy USDT on an exchange with your bank account or e-wallet and send it to your deposit address; the guide “How to Buy USDT for Your Virtual Card” walks through it step by step.
ERC20, BEP20 or TRC20 — which to choose?
ERC20 is recommended (supported by almost every exchange and wallet worldwide); to save on fees, choose BEP20 (Binance withdrawal fees in October 2026: BEP20 about 0.01, ERC20 about 0.5, TRC20 about 1.5 USDT). Otherwise, pick the network your USDT is on: the top-up page supports 6 networks — ERC20 / BEP20 / TRC20 / Solana / Arbitrum / Polygon — just choose the same one when withdrawing from your exchange.
What if I pick the wrong network?
USDT on different networks is not interchangeable. Funds sent on another network or in another token may not be credited, so always withdraw on the same network as the top-up page. If you've already sent it wrong, contact live support with the transaction hash (TxID) and we'll help check — recovery isn't guaranteed.
A minimum top-up of 35 USDT is too much — can I deposit less?
No. 35 USDT is RDVCC Virtual Credit Card's minimum top-up line. Reason: fixed costs such as on-chain gas take too large a share of small amounts. We suggest depositing 1-3 months of usage at once to spread out the on-chain gas; the deposit fee is a flat 0.5%, no tiers, the same rate for every amount.
How is the card top-up fee calculated? Are there volume discounts?
It is tiered by your cumulative card top-up volume in each calendar month: under $1,000 the fee is 2%; from $1,000 it drops to 1.5%, from $5,000 to 1%, from $10,000 to 0.8%, and from $50,000 to 0.5%. A new tier takes effect within the same month, and any difference already charged at the higher rate is refunded automatically. The fee is charged on top of the amount you enter. Example (at the 2% tier): enter 100 USD → the card limit increases by the full 100 USD → a 2 USD service fee is charged separately, 102 USD deducted from your balance in total. The card is credited with exactly what you enter — no reverse math needed.
Can the balance be returned?
Yes — two ways. 1) Prepayment Refund (keep your account): submit under "Account → Prepayment Refund" (password + email code), any amount, account stays active; a flat $2 fee per refund (payment processor fee included), automatic payout after a 24-hour security cooldown, minimums TRC20 ≥ $12 / ERC20 ≥ $3. 2) Close your account (full clearance): first close every card one by one in /account/cards (including frozen / abnormal ones), then submit at /account/close; after a 24-hour cooling-off period and manual review the balance is paid out in USDT (the same flat $2 fee per payout, payment processor fee included) — 1-7 days if there are unsettled transactions, up to 30 days in special cases (e.g. hotel pre-auths); below $3 the only option is to forfeit the remainder, and the account is locked once complete. A closed card's balance returns to your account balance free of charge. See /refund-policy.

USDT all clear? Make your first deposit

From 35 USDT, usually credited within minutes, 0.5% deposit fee

Sign up and top up →Contact support