Telkon mobile's Poor service

I've beenTelkom for 6 years now and and kept renewing my cellphone contract with them, on the 25th December 2019 my phone was ****** and I called in for telkom to suspend my account and blacklist the phone. I then found out on the 7th January 2020 that ***** was done on my contract, I spoke to several agents and managers from the telkom call centre and went to several telkom stores to get the issue resolved and today I found out that nothing was still done and still no feedback regarding my refund. I recently renewed my contract with them again in confidence that they will resolve the matter and this is the treatment I am receiving from them. I am very disappointed and wouldnt advise anyone to take up a contract with telkom because of such poor service.