Double debit and double bundle loaded

Just when i thought the service improved. Now was debited on the 11/09/15 and 15/09/15. For the same amount. It seems that there is no record of what is being put into the system. Also while calling in for additional data today after the 3rd phone call only then was the data loaded and now also double loaded and then who sits with the extra costs of this incompentantacy. Is this how MTN runs its company? I demand a better service level ASAP and a immidiate refund of the double debit!