Contract Cancellation and inability to use the ser

Telkom mobile has the worst service ever. I have made 3 contract cancellations, the first one was in the beginning of April, another in the beginning of May, another in the beginning June, they still tell me that the stores I went to never processed the forms, the third one was emailed to their call centre and receival was confirmed, all they do is keep on debiting me, when I reverse the debits, they tell me that I owe them. If my voice contract is not made pre-paid by 3 july 2015, I'm going to spread the word on social media that people must stay away from telkom. Right now the number in question only allows emergency calls.