Bad online shopping experience at Woolworths

I purchased curtains from there online store 17 November 2020,received the parcel 24 November only to find out that I received a parcel of underwear and perfumes which I didn’t order. When I follow up with a call they say they have 24 hour turnaround time, but 24 hours lapses I don’t hear anything from them I send an email on the 25 of November and I get automated response and until now never got a response from them. I call again 30th November 2020 I speak to someone else saying they can not retrieve my curtains and they are no longer in stock. So my question is how do u sell something online when you don’t have stock,mix up orders and no one takes responsibility for that?infact no one knows what happened to my order.stuck with someone else’s underwear and perfumes which I don’t want!!! And they say they encourage online shopping to limit the risk of Covid-19 spread. I have never done online shopping with Woolworths before but I’m definitely sure I will not be doing it again and would not recommend it to any of my friends and family. Please note I’m issue has not been resolved.