Customer Service? What customer service?!

My husband had an account with Cell C on his name and when we cancelled it they did not notify us that the cancellation fee wasn't debited from our account (after we instructed them via email to debit it from our account). We were then handed over to debt collectors and were battling to track down what it is we actually owe. We have eventually been informed over the phone that we have paid over everything they required but have had NO SUCCESS in getting a paid-up letter from them. We are in a bond application process for a house and this is wreaking havoc! There is absolutely no success in requests to speak to a supervisor and nobody responds to emails sent to disputes/accounts/queries department, etc.

@CellC please let us know who we can speak to, directly. This is a time-sensitive matter.