Dissatisfaction on the service rendered to a NINE yrs loyal customer

One thing that I have to regret it would be the day that I took MTN contract which it’s May 2013. Aowa this people are harassing me since April they keep on debiting in my account and I’m done with their contract I don’t know how many times did I call them to cancel. Don’t ever try to join them otherwise you’ll regret because last month I took a day off to one of their shops to explain the matter and guess what, I was told that they can’t assist because it’s saying pending wara wara ….