Woolworths can't be trusted

So I have an account with Woolworths,it's probably less then a year old , so I pay my account every month through the Woolworths app,there you can also check your statements and balance everything, So I paid my account on the 9 th November Suddenly on th 15 th November I see a debit order from Woolworths going off my bank account, I never gave them permission to do a debit order ,or to take money out of my account unfortunately the debit order failed because there was no money in my account obviously because it's not my pay day, so my credit score a few days so yesterday I saw email from cleascore my new credit score is in , only to get the Schock off my life my credit score went down 11points ,due to a missed payment from Woolworths,so I immediately called Woolworths they put me through one to the other, finally the person ask all my details says she sees I did pay ,and my next payment is only due in December and asked me am I sure I didn't give permission for the debit order because how else would they get my banking details,in my frustration to the fact that as werking on the financial side how can you ask me that when you requested banking details with 3mnths bank statement when you apply for the account how she does not know that is beyond me ,All she did was say she's sorry they made a mistake and I can just send a email complaint, and gave me ,3 email addresses to email to sort it out myself, to dispute with the credit bureaus for there mistake, because she didn't do anything I went in the store ,even worse they had to put me through to a call again that person even worse didn't know how anything works kept putting me on hold to go and ask what to do,their phones signal is so bad she said she sent me and the credit bureaus the update to say my account is not in arrears up till now I still haven't received the letter,she was supposed to explain how and who gave permission for the debit order and her phone made noises she asked to call me on my phone never called only to find out by some staff I'm not the first one to come in and say Woolworths just debited their account without permission it's ******* it's Called THEFT AND WOOLWORTHS HAS IT COMONG IF THEY THINK IM GOING TO Leave it as is, because how can I trust this es with my must personal information.