Quick for business - slow and inconsistant information regarding loyalty rewards

My initial experience was great as I had an excellent personal banking helping me with my individual vehicle finance application. This complain revolves around the cash loyalty bonus. The agent first told me that if I get the finance through the dealership via ABSA then I would not get the bonus... then I phoned and checked again and the other agents told me that I might qualify (although I already received an sms saying that I qualified?!) Thought that was sneaky. Then I made sure that I settled the car and took out new vehicle finance. The agent sold me on this bonus and then only after the contract was signed they said that it would only be paid out in 45 working days! Which is silly! But now every time I call to follow up they need to find the info again and the 45 days' terms change again and again. From the first conversation it was communicated WITHIN 45 working days from signing the contract, then it changed to 45 days from settling the previous car and now it is 45 days from when the settlement reflects.... Not a great impression. They were very keen to get my business and now when it comes to paying back the cash bonus they would rather take the whole 45 days and more which leaves a bad taste in my mouth. Then when I wanted to complain - they put me on hold for more than 20 minutes and dropped the call. I was impressed with the initial business to such an extent that I was transferring back to them from FNB... now having my doubts that I made the right decision.