Contract cancellation

Trying to get through on Telkom "Customer Care" number i(10210 or 081 180) s a frustration on it's own. You are immediately directed to a menu offering a range of options & asked for a reference number (not sure where to obtain the number from) the call is then just terminated. The walk-in centre is also unable to assist as they can only offer you a new contract. How do you make contact with anyone to enquire if an erroneous contract has been cancelled?