1. If the credit card is blocked due to overdue, it is recommended to return the overdue amount first. After paying off the arrears, you can call the official service hotline of Minsheng Bank and then take the initiative to explain the situation. In general, if you are sincere, then the bank will unseal it for you.

2. If your credit card is lost or stolen, under normal circumstances, after the relevant matters are handled and the bank confirms that your credit card is not dangerous, the bank will take the initiative to unseal it for you.

3. If it is blocked because of cashing, it depends. If you don't cash out, but the bank mistakenly thinks you are cashing out, you just need to call the customer service center to explain the situation and apply for unsealing.