PAID UP ABVAFACCOUNT

I settled my Vehicle account on 8 Jan 2015 and was told that it took 3 days before it shows on the system. I phoned after the 3rd day and it was still not closed. The consultant who answered the call gave me the assurance that my account will me nil after this call. He sent me a sms as proof. I received the sms on the 13th of Jan 2015. On 20 February 2015 SBVAF debited my account with R1703.39. How is this possible if the account has been paid up? I want my money back!