Payment to Telkom for services not rendered.

My account number is ***; 🆔 number ***. Early in 2024 I app**** for LTE from Telkom. They checked in their system and said my property is covered with their network. They gave me the router and instruction on how to get connected. When I got home it didn't connect. I went to them twice to complain. They sent their agent to inspect my property and he discovered that it is not covered. I returned their router and they said they canceled the account. Telkom went on withdrawing from my account for the service never rendered. On the 10th February 2025 I went to Telkom Ballito and they said I will be refunded in 21 days. Nothing happened after that. I have gone to them thrice to enquire about the payment but nothing has happened. The last time I went there their desk agent told me to reverse the funds if they go on deducting. I did that for March and now Telkom has listed my name with the Credit bureau. Please help, I need my money back and I want my name canceled from the credit bureau.