****** airtime

I would like to make a formal complaint on the basis of airtime is dissappearing ,I called the contact centre requested to speak to team manager on numerous times and get told that they not available and get put through to a 2YC I was also promise call backs in 24/48 hrs no callback I then have to call the contact centre which costing me more money what mtn already take. R120.00 which no 1 can tell me were the airtime has gone. All I get told is the bbm network took the airtime , I get told to call the bbm tec no 1555 which the agent inform me that we get 200megs on 29.95 plan which clearly no1 told us when we signed up all we were told is that we gt linited features such as email accs etc we cant load airtime on the phone because we afraid the funds will disappear we cant call mtn contact centre because we sign to one2one the phone is useless and this is the 2nd time we having issues with one2one the last time the bis was not activated seriously the call centre is useless I hope someone can acknowledged my complaint before I take this further to icasa.