Telkom's *** service

Telkom is bad for business, they are pathetic.After cancelling my contract in August (which I have 7 days to cancell) and collecting the device router on the 9th of September Telkom are still deducting fees or let my say amount for a router that was collected.Last month they deducted R554.19 and I just recieved a invoice for end November for R 615.32....can someone please assist me with the ombudsman telephone number