No After Sales Service

So I bought 3 benches from Makro and when I checked them after delivery, one was damaged. I tried to do an online return but the system says I did not buy anything from Makro. I have logged two calls about this and sent two emails, so now what do I do? The response I have received is someone has to input the delivery of the goods then I can do a return. I have no control over this and it is now about a month since I got the goods.

I have screenshots of the invoice, the screen saying I bought nothing so anyone from Makro who cares about customer service I can send it to you.