Incorrect Account Billing

Telkom issued me with an invoice on the 3rd of November, on the 4th of November i logged a query and received a case number ***0 and i was told i would be contracted with 72 hours. i waited until the 12th of November then i decided to call and find out but they kept on telling me someone will be in touch with me, then i called on the 17th, 19th, and the 25th and i was given the same answer. i am currently sick and tired of not getting the issue resolved. I would like this issued resolved before the debit order goes off.