Woolworths Double Debiting

On the 18th November I bought a few items online, the amount was debited from my account, then when the order was processed and delivered on 23 November 2020, the same amount was deducted again! .. I called them to notify them, the consultant told me that the first amount is a reserved amount (hence card authorisation is stipulated on the bank statement,) and when the order is processed the amount is actually taken.

Now I totally get that because I work with bank accounts of various people on a daily. But the difference is that when the amount is finalised and paid, the first line item should disappear on your bank statement and the second one will appear, yet my statement still shows both and the money in my account has been deducted twice. The order has already been delivered on 23 November but not the funds as the consultant assured that the pending one will be reversed .

I need to speak to someone that can help and sort of this matter.