Biggest mistake doing business with wesbank

I wish I could rate wesbank lower. After doing the best thing and paying off my car in 2 years. I get a letter advising that the 2 products that I paid for in full has been canceled. It's never ending issues from the start with wesbank. How is it that wesbank cancels something which I paid for... So they got full payment now they cancel my product. What scheme is this wesbank? Your engine room is quick to sell us products after we finance with you guys but are equally quick to cancel products without any permission. I will refer this to the consumer goods ombud or I will take this all the way to the NCC you cannot do what you did.