Terrible customer care service from your Call Centre

Evening, I am writing here with great frustration as I have not received any joy in terms of your service. On the 7 August 2024 I purchased the home WIFI online and made payment of R 788. I received the device with no issue but to be connected to the WIFI I struggled for 5 days just to be connected. My issue stems were MTN double debit me again and which an invoice amount of R1214 of which they say I need to pay. I've contacted your customer care service 5 times already 3 consultants drop the call in my ear. The last consultant stated she would send me an email and never did. I've went to two MTN branches for assistance and never got joy. Was advised to contact these ****s' consultants at your Call Centre who just don't give great service to resolve this issue. Today my service was disconnected. I would like my refund with MTN and for you to cancel my subscription with you guys. Can I please have assistance here. My billing no:BA***