Shocking- the worst brand

If I could give Telkom minus stars, I would. Absolutely shocking how a brand is able to operate as they do. My husband closed an account on the day he opened it in January. i.e. we never had an active account. Yet, every month money gets deducted from his account. He has spoken to many people who have confirmed that he does not have an active account with Telkom. Every month he needs to do this and reverse the transaction. We are now applying for a home loan and are being denied because of monies owed to Telkom for this exact account. It cannot be ethical to keep deducting money for an account that is not in use. No one is getting back to him when they say they will. Now I also all of a sudden have an account created on the 8th of March (which I did not create). What does a person need to do to sort this out? Take legal action???? Absolutely shocking.