Debit order date change

Good morning.<br> My employemnt status has recently changed and now no longer get paid on the 15th of a month but at the end of the month, I have tried to change and arrnage my new debit order details since last month 01 June 2015. Since then my account has now been suspended on 2 occasions, June 2015 my account was suspended even though I physically made payment at the store at the cape town Golden Acre branch proof of which was sent to the customercare email address, in June my account was suspended after the payment was made meaning that an up to date reconcilition of accounts was done before the suspension, this month my account was double deducted by R 559 and then returned to my account on the same day, yet I recieved notice to pay the amount of 559 the very next day. My account now has been suspended again and MTN are now demanding 559 to reactivate my account, these figures are incorrect as my monthly instalment is 289 per month of which 350 was paid in June 2015 and money was returned to my account on the 16th of July 2015. I have tried to change my debit order dates but to no avail and have yet to recieve accurate amounts of account balance, could someone please help.