There are certain risks in buying supermarket cards with a credit card, and it may be considered a cash-out operation. In some cases, purchasing a supermarket card with a credit card may be regarded as a cash-out behavior by some institutions or banks, because credit cards are usually not allowed to be used for cash directly. Therefore, whether it is considered a cash out depends on bank policy and the use of one's bank account.

The intention and purpose of purchasing the supermarket card will also be considered. If you buy a supermarket card for cash back or points, that's not usually considered a cash out. However, if you purchase a supermarket card to convert your credit limit into cash, or purchase a supermarket card with a credit card and then immediately resell it, this may be considered a cash-out operation.

Therefore, if you want to buy a supermarket card, it is best to communicate with the bank or credit card issuer and understand the relevant policies before taking action. If you are not sure whether it will be considered a cash-out operation, it is recommended to follow the bank's advice or choose other shopping methods to avoid unnecessary trouble.