HAVING A PROBLEM CANCELLING A CONTRACT

My husband is deaf and cannot hold a conversation on a telephone. He has a cell phone contract with Cell C that we wish to cancel - the two-year contract has expired. We went to Cell C in Carnival Mall with my husband and his ID documents to see if they could assist. A very helpful lady by name of Rosa said they were unable to do this - it had to be done by the Retentions Dept. The Retentions Dept said they could not help - they HAVE to speak to the account holder. Back to Carnival Mall Cell C - they said send a mail to Customer Services. Customer Services just sends automated answers saying they will call, but they never do. So I called them. They cannot help - they HAVE to speak to the account holder. Back to Carnival Mall...... ETC. This is called CUSTOMER SERVICE TENNIS - you get lobbed from one side to the other. Without assistance. This has been ongoing for over a month now.