Hello Mondal1661, request you to create a ticket on https://help.content.samsung.com/csweb/main/main.do for further assistance with your query. You can even send the following information on mail: email@example.com-
1. Samsung account ID
2. Card type - CC or DC
3. Registered mobile number -
4. Error Type
5. Network (visa/mastercard/etc)
6. Last 4 digits of card
P.S: Request you not to share this personal information with anyone else.