MTN data deals *******

I purchased the popular 1G data bundle for only R89 valid for 2 weeks deal and to my surprise it expired within only 1 Week forfeiting my over 700Mb. To my suprise the MTN has the audacity to send me a reminder text saying my data is expiring in 48hrs on the 5th day. I queried this with call centre and spoke to a lady by the name Spiwe, at first she agreed that there was billing error. After requesting an immediate reimbur*****t of my data I was kept on hold for over 20mins trying to frustrate me so I to hang-up. Then later she come up with robbing tricks saying that I have used over 1.5G. How so after I only purchased 1G data. Spiwe told me to wait for the 5day investigation whilst being billed out of bundle rates -- trying to maximise your profits, Shame MTN.<br> Surely someone should be able to immediately assist and stop this malfunctioning system and eradicate this unjust thieving.