Telkom ****

I have a contract with Telkom, my phone was ****** when i was 6 months into a contract, I reported it then got a new phone then I kept on paying for the other phone and a new one. The ****** phone device obligation ended in July but they are still taking money from account, I tried visiting their customer service outlet and calling their call center without being assisted, they promise to send ticket numbers that I do not receive.