Avoid Wesbank

I financed a new car through Wesbank last year. In the contract a rate of 10.75% was specified. I have sold the car and queried the outstanding amount which seemed to high. On investigation I was advised that a rate of 12.5% was loaded and that the issue would be investigated and that feedback would be forthcoming in 48 hours. I have subsequently left SA on a trip and can no longer follow up via the call centre. This was made clear to Wesbank at my time of departure and they promised that feedback via e-mail. 8 days later and nothing. Now I have to settle at a higher amount than required by the contract not to loose the sale. Pity Wesbank didn't treat me like a p.o.s. before I signed the contract.