MTN please be serious about your business

I am still struggling to get my contract officially cancelled so i can be on prepaid. Your so called department that cancels contracts (not sure why not in the store), nobody picks up the phone. I went to your store at the mall of rosebank, where your staff could not even pretend to be willing to hear me out. The problem with corporates like mtn, is that all you want is the money, once you have that you feel you have no obligation to customer service. I am being seriously inconvenienced by this situation because MTN is not over charging me in terms of data costs. Also, if i choose to leave your MTN which seem very likely now, let me say this now, i will not be giving up my number, because i ported this number to mtn.