Incorrect Amount Debited - 2nd consecutive month

My account was incorrectly debited at the end of May 2015, after being incorrectly debited at the end of April 2015. These amounts were more than the amounts on the statements emailed to me by MTN. MTN responded to my previous complaint for April 2015 and yet this happened again in May.<br> <br> PATHETIC!!!<br> <br> Initial reference number below:<br> <br> Reference Number: REQ***<br> <br> Response for the April 2015 incorrect debit order:<br> <br> Hello willy_b,<br> <br> Apologies for the inconvenience experienced, please note that the matter has been referred to billing department. They will investigate and revert to you with feedback and a way forward. The reference number for the query is: REQ:***.<br> <br> Regards,<br> MTN Service Provider<br> <br> Waited for hours during multiple calls to the call centre .<br> <br>