No debit order cancellation

Telkom, do you have any competent staff that one can actually speak to? Since when can't you cancel a debit order because you can only pay cash. Every month a 200 rand fine because of this ****. Who is going to pay it? Have to pay 10 days in advance not to get this so called fine. I am busy canceling all my contracts. 4 to go and then I am done with you.