If you bought it in a bank, see if there is online banking, and if there is. Then you can exchange it on the bank's website. Then, after the money arrives, it can be transferred out through online banking.

The second way is to spend some money. Go to the local notary office and invite the notary to the prison. (Notaries can go out for notarization) Let notaries notarize for those who can do things. Then the notary office will issue several notarial certificates (see how many you need), and the notarial contents must be written well. In this way, the agent can go to the bank to handle business with the notarial certificate and the original ID card of the agent.