bill payed up but still debiting account

On the 30-07-2015 I phned mtn tryin to find out what my bill is apparently d account was handed over to legal and I payed it up .I went to mtn to check hw is my bill d lady @the store said I mst phn 808 and ask to be transferred to legal I did dat but agent said he gonna send the email to legal to remove my name and cancel debit orders and I mst check the following week of which I did my name was removed but nw was my pay day debit order went through .when I phn the guy who was helping me said he can only see info before it was handed over he cant see recent updates and I mustn't phonr mtn I must phn legal the number he provided doesnt even work .mtn cant even tell when was my account upto date and the number is been recycled mtn cant tell when dd the new own start using tge the number pls I want my money mtn