Settled car, still not settled

My car was written off and settled by my insurance on the 15th September 2015. I tried following up with Wesbank (Account number ***) as to whether the payment was done and settled. The call centre agent could not help me and referred me to Mabasa on ***...a number that has never been answered...EVER. Instead, I receive a statement on the 1st October 2015, showing my car has not been settled. I have proof of payment from my insurance disputing this. Now I have been given another number Gift Moloyi ***...same thing...I just listen to music and no one EVER answers. Can someone please respond and tell me a way forward. I am not willing to have that debit order go off on the 15th of this month for something that has been settled. I am tired of wasting my airtime trying to call people to sort this out. Do something Wesbank!