Three months and no one solves a minor problem

On the 13th of March my Telkom voice line was installed. They let me know that I will have to make the first payment end of April, and when I received the account statement, there was internet on that I did not subscribed to! I phoned them immediately to ask them to remove the amount from my statement and to \cancel"the service. The lady let me know that it will take 5 working days. I phoned on the 23rd of April"