Lost Airtime

<p>On Saturday 9 July 2016 just after 7:00am i bought R30 airtime directly from my bank account. This is something I do often and never have I had any problems. However when I tried to make a phone call i was told that i have insufficient funds to do so. I called MTN Call centre and was told they cannot help me since the system hasnt updated. To date (12 July 2016) my airtime is still missing. I bought 1Gig data bundle on 9 July too and that reflects. Today i used my points balance of 1382 to buy airtiem again. The amount of R20 reflects on my balances but i cannot maeek calls because of insufficient airtime. Can someone tell me WHERE THE AIRTIME IS DISAPPEARING TO?????? MTN consultants are just not interested in helping.</p>