Current balance lost when converting to prepaid

Since I can't respond to MTN's response that I posted here: http://hellopeter.com/mtn/complaints/current-balance-lost-when-converting-to-prepaid-***<br> As I said to Bongi, I still do not understand why the airtime that I paid for while I was on contract cannot be converted to airtime that I can use now that I am on prepaid. Cancelling the airtime I have seems in violation of the CPA (regardless of what the terms of the contract say). <br> <br> I have found cases on hellopeter.com where MTN has carried over airtime, see a couple here:<br> http://hellopeter.com/mtn/complaints/policy-being-used-to-keep-people-with-mtn-***<br> http://hellopeter.com/mtn/complaints/sucking-my-hard-earned-money-because-they-incomp-***<br> <br> So why will you not carry it over for me, a loyal customer for 10+ years who has paid you lots over this time for your service? At no point did anyone on the support line tell me that I should stay on contract until I use up my airtime. Anyway, at some point I would be charged for the next month and it was not made clear to me by anyone there as to when this would happen and what the contract amount would now be. <br> <br> Please escalate this to your manager!