Bank not closing the cheque account even after I signed the documents yo close account.

I visited the branch at Gardenroute Mall on 2 July 2022. I waited more than 1 hour to be assisted. I signed documents to close my cheque account and 2 savings accounts. Today i noticed that they did not close the cheque account which means now they will still charge me banking fees. Can not get hold of the branch via telephone to find out why they did not close the account.