Poor service and interest on arrears

I Bought a car through Standard bank financing, and during the time I got retrenched. I made arrangements with Standard bank to keep the account on hold, and I had to pay consultation fees/admin fees for them to be able to do that. After I paid everything and the account was put on hold I did not hear from them again. Then withdraws started showing on my bank account from a hacker and I closed the account , I asked Standard bank to stop the debit order from that account and move it to a new account. They refused and said I should pay EFT, now every month they still put the debit order through and it come back unpaid, they charge me interest on this account now because of the debit order returning, although I am making payments, After 8 months of not hearing anything they want to reposes my kar for that interest on the debit orders and also they never put my account on hold during retrenchment. They never phoned, emailed or posted any information to me about this account being in arrears......I am so upset about their service.