No help from Telkom

This is the third complaint I am writing regarding Telkom, with absolutely no help. Each time I write a complaint, I get a call from someone who says they'll get back to me and then they don't. I requested that my line now be cancelled and that they refund the balance that they owe me. I even filled in the cancellation form as requested and e- mailed it to them with no response yet again. This is extremely frustrating as I've explained before- due to the circumstances surrounding my husband's death. I live in Bronkhorstspruit and Menlyn is a distance from here for me or my children to keep going up and down. Please help.