Hight Upset, ******** debit order

I took a loan of R2000 from this stupid company, I accepted a debit order mandate for the 25th this stupid company went and debited my account on the 22nd firstly which is not what I agreed to, secondly when I raised the issue I was told they track my account 3 days before and I don't get charged fees , which is total bull**** as my account went I to a minus as there was no money and I got charged an unpaid debit order fee from my bank because this company ********ly debited on the 22nd i have proof of the Sms that was sent confirming they would debit on the 25th but they debit on the 22nd, I was also told my salary date falls on a weekend, but the 25th is today so what nonsense is this, their agents are unhelpful and don't even try to solve my issue just stupid automated responses, I wnat my fees paid back to me as this was caused by their ****!