What happens to my airtime?

<p>What happens to my airtime, everytime i recharge my account i wake up the next morning with no airtime on my account, when i call MTN they assure me that i have no subscription but still the samething happens.</p> <p> </p> <p>I recharged last night and made a phone call when i woke up the next morning i had a R00.00 balance. what happens to my money? so many people have the same problem, sometimes when you call their call centre they make you hold for a very long time.</p> <p> </p> <p>i would really advise people not to use the MTN network, they are taking money from the poor.</p>