Data and Airtime, horrible service

I have been unable to log a call to Mtn's call center when I finally go through I'm told I've exceed my limit to call the call center, what nonsense is that? I then texted mtn to resolve my query on twitter I'm yet to receive a response 2 days later. I'm actually traumatized by the service and attitude from mtn I regret moving to mtn. Secondly my data disappeared a day after moving to the new price plan \Data 4 Keeps"with my airtime also disappearing"