Bad customer service

On the 5th of July I received a call from Cell C collections advising me that I owe R14k for early cancellation which I desputed as Cell C owes me money which was debited on my account same day I sent an email to the following people Zanele Ngwenya, Nonhlanhla Hadebe and Nadine Attwell to date I have not received any feed back. 9th of July 2021 I logged another query with Cell C ref no: *** still no feed back. I am now lost for words as Cell C cannot resolve my query, can someone from Cell C resolve my query ASAP.