Incorrect sale item charged at original price

I made an online sale purchase on Monday 14.02.2022 immediately after I successfully placed the order I realised that a sale item of R165 still went through on the original price of R449.00

I contacted the online telephone assistance and she confirmed that the price should have been R165 and that she will lodge a query with the IT department, as the item should have been R165. It's the 18.02.2022 I received the online order yet nothing.

So I would like to know should I just return the item to the nearest Woolworths or will there be a credit of R284 processed on my account?

As this is seriously bad service with no communication since Monday.