Frustrated by extremely poor service

I am very frustrated by the extremely poor service that I receive from Telkom as a service provider. I have been struggeling with a billing issue for quite a while now and apperantly no one at telkom can solve my problem. The most frustrating thing is to expain my issue to the every call agent I've dealt with knowing that my problem will again just not be solved.

I had 2 Telkom contracts that expired in March this year (2018). I went to my nearest Telkom store to terminate the contracts. The canvelation form were sinlgned, completed and handed back to the lady behind the counter that assisted me. The contracts were never cancelled by Telkom so I kept on paying money everymonth. I then phoned Telkom to find out what the issue was only to find out that there is no sign that I cancelled my contracts (I still have the copy of the cancellation form that I completed that day). I noticed that the monthly costs of the contracts reduced from lets say R140 to +/-R50 and the call agent I was talking to explained that I have now paid for the devices so I will still receive data everymonth, so I decided to cancel only one of these 2 contracts in July. The contract that I did not cancel is causing the problem that I am so concerned about. Telkom used to allocate 5GB a month to the sim card for that contract. So in August this year I used the sim card like I did every month, and then I received a sms saying that I have reached my monthly spending limit which was set to R500 by default. So I realised that my data was not alocated ever since. I went into the store by frustration from useless service from the call agent that is incompitent to do their work and resolve my issue. The lady in the store explained that someone at Telkom (1 of the previous call agents) cancelled my data for this contract when I cancelled the other contract. So I am paying a monthly fee every month for absolutely nothing in return??? Telkom left me with no choice other than to cancel this contract. I launched a few cases with. Telkom now to try and claim that R500 that I paid to Telkom due to their own mistakes with no sucses at all.

This makes me want to cancel all my contracts with Telkom and not recommend Telkom to anyone.