Migrating to prepaid and losing airtime

Having been a loyal client for the last 13 years, I am quiet dissapointed in MTN and closely reaching my limit.<br> <br> I had three lines with MTN. Planning to migrate one from top up contract to Prepaid, I called MTN 808 to inquire whether any prepaid airtime will be forfeited during such migration. I was unambiguosly adviced that any prepaid anytime loaded over and above the contract bundle would NOT be lost but wil be transferred with the number. Based on this, I loaded R500 on the phone and then requested the migration. To my surprise, today I wake up to having 0.44 cents and the entire amount is gone. <br> <br> Upon inquiring and calling the call centre, an agent called Neli firstly confirmed that advise that I shouldn't have lost the airtime, but rudely referred me 173. I asked to a ref number. I called 173 and was told they cant help me I must call 808. After 45 minutes of pillar to post, i gave one of the 808 agents the earlier ref number only to find that it doesnt exist. Turns out, Nelly just dismissed me and didny attend to my concern.<br> <br> No one can tell what the hell is going on and everyone sends me to the next pillar<br> <br> I demand answers and my airtime. Must really reconsinder SP