Poor Service form C Cell - Fibre

I signed up for fibre with Cell C in September informing Cell C that my current providers service will only be cancelled from the 31st of October 2019 and i would like to start my service with Cell C on the 1st of November. Firstly i was told that my DEPOSIT will be used for my first months payment. Then i get an invoice for a service i never used. I requested by the sales consultant that assisted me, to get a manager to cotact me and up to now, nobody even tried to phone me. I also requested a refund, which they apparently will log and haven't heard anything form them. I requested for Cell C to cancel my service, because of the poor service and no feedback.

PLEASE CANCEL MY SERVICE WITH IMMEDIATE EFFECT!!!!!!!!!!!!!!!!!!!!! I'M FED UP CONTACTING CELL C AND NO RESPONSE!

THE SERVICE IS UP TO sH*T!!