Poor service

Its easy to open the account but try to cancel it, not so easy. I would like to cancel both my contracts because the service that I receive is very poor. I have been trying for a week to cancel 1 contract. First you call in then you need to go to the store to make the payment then you have to call back. I have been patient did all that when I called back they could not locate the payment then the next day they tell me the amount is wrong. Back to the store to make the outstanding payment. Then called again then they cannot pick up the initial payment. So the transfer of calls begin because they cannot pick up the initial payment. Wow so then my call gets dropped because I am losing my mind. Thank you MTN I will definitely be chaging my service provider.