Account transfer

I changed banking details &made a payments on the 4th of March,15. To my own surprise my phone has been suspended and i have been calling the MTN call center , the response that i first got was your phone has been suspended and i asked how come coz i made a manually payment. I was told they had to suspend my phone so that if there are any charges incured they wont be liable. I find this a lame excuse, who would have made the manually payment besides me. I was told that my cell has been opened up to today my cell it is still suspended. I wonder how they run their accounts department . I phoned again, was told my cell has been opened but the network is suspended, and it takes another 24 hours for my query to be resolved. i am ****ed off with MTN as i have gone for days without a phone and to make it worse their prices on my debit order keeps on going up and i dont know why because i am on a top up 200 now i get R100 only.. I was with nashua Mobile, i was transferred to my service provider & now i actually don't know how much i am paying. I have been calling the call center to find out whats happening btu no one knows. Can i please have clarity on why my package was changed.