Poor Service

I took out a contract with MTN (Samsung Galaxy S6 edge+). I'm supposed to receive 100min + 200sms + 500mb + 1gig promo data. <br> 1st month I did receive my promo data, but on the 2nd month I received the promo data which was only valid for 7 days. I called in last week Tuesday to have this sorted out as from that promo data I still has +600mb remaining. <br> When I logged on the 27/10/2015 the request, I was promised 7 days turn around time. On I spoke to Uyanda Thobejane 06/11/2015 who told me they have a back-lock as if that is my problem.<br> MTN is are aware that it was an error from their side. Why can't you load the remaining data balance on line and continue with your investigation?<br> Your process is inconveniencing me as now I have to take money out of my pocket and buy data bundles. What's the point of taking out a contract with data bundles if I am not going to receive them? Next thing I know I will be billed incorrectly and it will take you another 1000 days to have the billing correct.<br> I don't any apologies from MTN, I just want my data bundles loaded onto my account.<br> MTN's incompetence explains why they are being fined Billions. They have useless people working & representing them