Never take contract with Telkom useless

Worst service ever, I called the customer care number to get clarity as to why I'm being charged a rejection fee when, I went to the store to advise new debit order date and I'm being told that agent didn't change the date and system doesn't allow to change dates and notice must be done a month prior, when I asked where on the contract did I sign for the above and acknowledged they can't prove it, so I must pay an extra fee for they stupid useless system and when I advised prior to debit order date and they IVR system the worst they never give options to speak to an agent... all Telkom does is just charge extra but they system is useless and not user friendly.. all they want to do is take and take and then you pay for bull**** service and they network coverage is bad, canceling this stupid service