UNFAIR BILLING FOR A DEAD DEVICE

I signed for an additional contract from MTN ***. The device, samsung A32 and the sim card was finally delivered by DSV couriers on the 1st of September 2021. After a few days the device's screen just went blank. I Phoned MTN call center and they kept on referring me to different departments including Mondo, DSV couriers and after sales department but no one was willing to help. On the 27th of September 2021 my device was finally booked in at MTN Brooklyn with the IMEI NUMBER: ***, IRMS568775 .After 7 days ( as advised by the consultant) from then I had to call every now and then for updates. On the 4th of October I phoned the after sales department and they advised that my device has been approved for replacement because it had a factory fault. Today is the 24th of October. I asked Mondo to cancel my upgrade because I have no device with me but I have already been billed twice- for September and for October. I phoned MTN call center yesterday and I was told my contract is still active and there was no request for any cancellation. what is even worse is that they added subscriptions on my new sim card - MTN GAMER which has been charging R3.48 cents daily , from the day the sim card was activated (2 september 2021) without my concern, I only found out now after receiving my bill for October. MTN SORT THIS MESS BECAUSE I AM NOT GOING TO PAY FOR A SERVICE I'M NOT RECEIVING!!!! IF YOU DONT WANT STRESS, NEVER SIGN FOR AN MTN CONTRACT OVER THE PHONE/ ONLINE