Failure to Accept Own staff's verification

Personally went to Telkom and cancelled land line agreement with copy of ID and was given proof of submission for cancellation.<br> Call centre left message on cell phone stating they can't cancel land line due to unable to talk to me to confirm I want to cancel line and do some security questions for verification???<br> Therefore the fact that I personally went to store and submitted cancellation form and copy of My ID still lets them believe it might be a mistake so therefore take it on themselves to refuse to cancel line and I need to resubmit request for cancellation what a waste of time!!!<br> Or is this just an ingenious way of making customers pay for something they don't want?<br> Trying to get anyone in Telkom to help sort this out is a absolute joke as it seems no one knows what they are supposed to do!!!!