Account Set Up Error

I have recently purchased a vehicle through Kia Northcliff and was thrilled to be accepted by Wesbank for my financing, as I believe this is one of the better banks to bank with.<br> <br> However it was only about a month ago that it came to my realisation that the Kia branch's staff did not comply to my request to have my loan billed at a fixed interest rate as appose to variable. I am now literally left to pay for their mistake as the recent two prime rate increases are negatively affecting my repayments.<br> <br> I have enquired about whether Wesbank can perhaps have my contract changed to a fixed rate and just adjust my premiums, and was told through your call centre a non explanatory.... NO<br> <br> Surely if you are able to make these kind of adjustments on the home loans you offer, the same can be app**** to vehicle loans? In my opinion I am willingly offering to make a higher payment (knowing I wont have any more future surprises) and this seemingly \good-to-bank-with"bank is just outright reclining my offer?"""