MTN *****s your airtime...

<p>I have been a loyal MTN customer for years. This last few months I have really been dissapointed in their service. </p> <p>This morning I had R80 airtime on my cellphone, so I used the *141*2# option to buy a week data bundle (1GB) R65. As soon as I bought it, it said something about MMI invalid code. My R80 airtime was gone and no data. How is this possible????</p> <p>I will move to another service provider, because this is ********!</p>