Cellc has a Terrible Customer Experience

Good Day I have a Contract with Cell C it was the worst mistake I have ever made, in my life going for 3 months, Cellc has debited R4505 from my account and as per Cellc payment is not allocated, proof of payment was send x5 times and still after calling every day for the last 2 months nobody has fixed the issue, me as the Client is required to do investigation by phone their, Customer Care (Manager - HLENGIWE BUTHELEZI) , Collections Queries (COLIN) on a daily basis. I required to speak to a manager the managers never have time or they even say they do not want to speak to me, for me as a Paying loyal Customer Cellc is the worst place to have a Contract.