BYDFi Card Transaction FAQ
1. Why Was My Transaction Declined?
To view the specific reason for a declined transaction, please go to:
BYDFi Card → Transaction History → Transaction Details
Below are common transaction decline reasons and corresponding solutions. Please review according to your situation.
| Decline Reason | Solution |
|---|---|
| Transaction declined: insufficient funds | 1. Check your available card balance. 2. If you hold supported crypto assets in your Spot account, transfer them to your Card account. 3. If the balance is still insufficient, top up via fiat or crypto deposit. |
| This merchant category code (MCC) is not allowed | Some merchant categories are currently not supported, such as gambling merchants, self-service gas stations, or other exchanges. Please confirm that the merchant does not belong to a restricted category. |
| Verification of the provided data failed | Please verify that the card details you entered (card number, expiration date, etc.) are correct and try again. |
| The CVV entered is incorrect | Please recheck and enter the correct CVV security code. |
| You have exceeded the allowed number of ATM withdrawals | Please confirm whether the transaction exceeds the card’s limits. If you need to adjust your limits, contact BYDFi Online Support for assistance. |
| The card is blocked | Please contact BYDFi Online Support for further assistance. |
| Payment failed | Please contact BYDFi Online Support and we will help investigate the issue. |
2. Can I Use BYDFi Card to Pay in Foreign Currencies?
Yes. You can use your BYDFi Card to pay for goods and services in foreign currencies.
The transaction amount will be automatically converted to the card’s settlement currency based on the Visa exchange rate on the transaction date.
Important Notes
The final charged amount may be slightly higher than the authorized amount due to:
- Exchange rate fluctuations
- Taxes
- Tips
- Additional merchant charges
The final amount is determined at merchant settlement and is considered normal.
3. Why Is My BYDFi Card Transaction Stuck in “Authorization” Status?
This means the merchant has not yet completed final processing.
Transactions are usually settled within 30 days, during which the corresponding amount will remain frozen.
For more details, we recommend contacting the merchant directly.
4. When Will Funds Be Deducted After Transaction Authorization?
After a transaction is successfully authorized, the amount will be temporarily frozen in your card account.
Funds are only officially deducted once the merchant completes settlement.
This process may take up to 30 days.
5. How Can I Dispute a Transaction?
If the transaction has been completed, we recommend that you:
- Contact the merchant directly to resolve the issue or request a refund.
If the issue remains unresolved, please contact BYDFi Online Support for further assistance.
6. Why Does My Card Account Show a Negative Balance?
A negative balance may occur due to:
- The settlement exchange rate being higher than the estimated rate at authorization, and your balance being insufficient to cover the difference
- The final merchant charge exceeding the authorized amount, with insufficient remaining balance
Negative Balance Handling
When your account has a negative balance, your BYDFi Card will be temporarily suspended.
Please transfer funds to your BYDFi Card as soon as possible to cover the negative balance.
After repayment, card restrictions are usually lifted within 24 hours.
7. In Which Currency Are Refunds Processed?
All refunds are returned to your card account and settled in USD (United States Dollar).
8. How Long Does a Refund Take?
After the merchant initiates a refund, funds are usually credited back within 3–10 business days.
The actual processing time may vary depending on:
- Merchant processing speed
- Card network procedures
- Issuing bank processing time
9. What Should I Do If I Notice an Unauthorized Transaction?
If you confirm that a transaction was not initiated by you, please:
- Immediately freeze your BYDFi Card
- Contact BYDFi Online Support as soon as possible
This helps protect your account and funds.
10. Fraud Prevention Tips for Using BYDFi Card
To keep your account and funds secure, we recommend that you:
- Never share your BYDFi Card or account information with anyone
- Avoid storing card or account credentials on insecure devices or networks
- Always carefully review transaction details before authorizing payments
If you detect any unauthorized activity, freeze your card immediately and contact Online Support.