Poor post purchase service. Stay away

Bought a size 5 shoe and they delivered a size 7. I immediately wrote to them to draw their attention to their delivery error and to the invoice which clearly indicated that I had ordered a size 5. They wrote back to me advising that I should create a video of the shoe, the packaging, the item details etc amongst other things. So, I should create a video and draft a lengthy report because THEY sent the wrong size?