Telkom is *****

I have a mobile contract with Telkom, cellphone number ***. I have not been able to use the number for more than a year. Telkom blocked my number. Every month they load data and charge me for it. I called Telkom to highlight the matter. I stopped paying, then they handed my account over to Nu Debt. I settled the account. They have still blocked my nr but continue to charge for data every month. They keep referring me to the self help portal. The portal refers me back to the 081180 nr of sends a message that I will receive a call from their operator. It’s been 12 long months. They will bill me again soon as I’ve cleared the account. Then they will tell me to pay before they cancel. Their cancellations department don’t pick up the call when you press 3 for retentions and cancellations. Please help!