AIRTIME & SMS BUNDLE

Good day, I've upgraded to a new phone on the 11/04/2015. Balances available - I had +/- R 17 500 airtime and +/- 4 300 sms's to be used. Once the upgrade was done and I've checked my available balances, I was shocked to see all have been lost. When I querried this, as I am not prepaired to loose this airtime and sms bundles. I was told by MTN it can be fixed and I will have my airtime and sms's back but to date it has not been rectified. Its now been a week and still no response ! I have been a customer with the same number with MTN from day 1 but what do they care as long as they get their money for the contract every month. When you owe MTN anything, their staff is very quick to call you but when MTN must rectify my problem they just ignore me. And take their time ! I'm very sorry that I have renewed another 2 year contract with MTN, I should have gone to another supplier.