Pathectic Service from pension *****ing service provider

Absolutely appalling service. My father and I approached a Cell C shop in Eastgate to ask about the cancelation of his contract and pay everything up to date to get told we must phone Cell C, We did this and got nowhere, So we then went to Cell C Head Office in Midrand and was given the accounts to pay up and was told that soon as we have done that to email proof etc and state we want the contracts cancelled. We did this and have heard nothing since. Yet my father is still getting notifications to make payments and getting emails from a credit agency saying he owes money. Is the staff so *********** that they cannot or won’t cancel accounts and milk money from a pensioner? This better get sorted ASAP or I shall take the matter as high as I can and name names.