Overdue amount invoice for an up to date account.

Number in question : ***<br> My contact number : ***.<br> <br> Can someone out there do his/her job properly because I am receiving an invoice reflecting an OVERDUE amount of R1296, while you took this same amount on the 23rd January via NUDEBT?<br> <br> This is very irritating because February Invoice should be reflecting about R310, not R1296 because on the 23rd of January, you took my money (R1296) via Nudebt for no reason before debit date. And I had to call you to cancel the last day of the month debit so that you can use the R1296 that you took on the 23rd January 2015 - which you did. But now where is this overdue amount from because my account is up to date?<br> <br> You people must stop being useless because this is nothing but nonsense.<br> I mean, how often should I be going throu this mess in order for you ppl to sort this issue.<br> To hell with the system error excuse - this must be sorted right now with no excuses and send me the correct invoice reflecting the amount of January 2015 to be debited in February 2015.