Woolworths website error cost me almost R400

On 17 February, I let Woolworths know of an error with my delivery - I ordered a pair of slippers and a pair of shoes from the online shop, and I used the size guide on the Woolworths website to choose the size, based on the actual foot length (which I measured before ordering). The shoes and slippers arrived and both are the wrong size - because Woolworths had the wrong size information on their website. To date, I have received NO response from Woolworths about this, despite querying it a few times. Now it seems I have lost almost R400 on shoes my kids cannot wear! Also, since this was a Woolworths error, they should be sending someone to collect and drop off a correct-sized pair, not expect me to go into their shop in the middle of a virus pandemic - this, too, I asked about and the question was ignored. I will never purchase from their store again, online or offline.