MTN are *******

MTN South Africa *******!!!!...load R60 airtime...buy R29 data bundle...they deduct R39....when I call they tell me about usage and I have to wait 30 minutes.... NO OTHER CELLPHONE PROVIDER DOES THIS!!!! This is NOT the first time it happened either. Balance is enough but when you want to buy a bundle they tell you you don't have enough airtime.....FORCING YOU TO BUY MORE AIRTIME!!! MTN are a bunch of ******!!!!