Telkom is Terrible

I've had the worst experience with Telkom, their customers service is pathetic and so is their service delivery, I recently canceled my Fibre line with Telkom because I was not receiving what I was promised, I was supposed to be getting a 10meg upload 10meg download line but 9 times out of 10 I was getting like 3 megs or at times 1.2megs which was totally unacceptable, I made numerous calls to telkom to complain, but never once did they send a technician out. They kept advising me to pull out the LAN cable which done absolutely nothing to fix the issue. Besides my connection issues Telkom kept sending me incorrect bills that were higher than what I actually owed but I continued to pay my contract amount. Eventually I decided to cancel the contract a few months ago and now Telkom expects me to pay a early cancelation, which I refuse to pay simply because all the months I was paying and not receiving the service I was paying for was like me throwing my money in the bin. So I managed to speak to someone in retentions and we Straightened the issues out or so I assumed. Now I'm in the process of applying for a bond and I can't move forward with my application because I'm waiting for almost 2 weeks for Telkom to send me a paid up letter. Their service is completely pathetic and there is no communication within the company. Each department has no idea what the other is doing.