Terrible experience

What a horrible experience. Imagine you pay your FULL amount in arrears, notify them get your line reinstated and then the Very next day they suspend your line again. I phoned the collection department and automated response says your number is not in arrears. I also emailed vodacom and notified them about the payment made. So how the hell do you suspend a line if payment has been made. Oh and don't forget they are charging you to unlock your line. This is really unacceptable