Unfair disconnection of cellphone service

I am currently not very happy with my service provider. I have made a payment through their website on the 26 September 2021, to date my payment has not been allocated to my account. This is despite a number of attempts to alert the service provide. As of Tuesday, 11 January 2022, my number has been temporarily suspended as I am unable to make calls or send messages. I have raised this matter via the following: 1. Going to the Cell C shop to report since the 04 October 2021, 2. Sending a number of emails, 3. Calling 084 135.