Incorrect item delivered - no assistance from Mr Price for over a month despite numerous follow ups!

I ordered quite a few items online and received my parcel on 26 May. One item was the wrong colour (a pair of boots) and I immediately called the call center and they told me to go to the store to have it exchanged. I informed them that I have a 2 week old baby and hence we are not leaving the house at all due to Covid risk and Mr Price must deliver the correct item and collect the wrong one. They asked that I send a mail then to help@mrp which I did. I received a reply on June 3rd only (from Quinton) asking that I send a photo of the barcode - which I did. The label on the bottom of the boots said black boots - but I sent a photo of the boots showing they are clearly brown and was mislabelled. Since then no answer. I followed up on this email on 15 June, 18 June and 27 June - no reply?? The fault is that of Mr Price - but I am getting 0 response, 0 support? I am not leaving the house to have this sorted out! Order ***