illigal debit order deduction on the 15/12/2015

My debit order bounced on the 30/11/15 after my company paid my salary in late, I corrected the payment on the 7/12/15, and sent through proof of payment on the same day (my account was 0 balance) they then proceeded to take money (R2226.59) off of my account on the 15th the moment my bonus got paid, the call Centre agent told me it was for November invoice (was paid on 7th) and just because they could they deducted December invoice in advanced.<br> <br> Not only can i not buy presents for my kids, the money has not been credited into my account, either Telkom refunds me today or they will have to furnish me with gifts for my family, it is over the 7 days they promised me.<br> <br> i have never signed a debit order for any other date than the 30th, i have a clean payment record with them for almost 2 years now and this is how they repay me, they are currently earning interest on the R2226.59 i understand its not alot but for me the money meant no presents for my kids