You can go to the bank and ask the staff to check it for you. Just show your identity information directly. When you have a contract, you should keep it well. Don't put it anywhere. It will be very troublesome if you lose it.

A contract is an agreement between the parties or both parties to establish, change or terminate a civil relationship. Contracts established according to law are protected by law. A contract in a broad sense refers to an agreement in all legal departments to determine the relationship between rights and obligations.