Even a photo isn't prove anything. Anyone can make a pic about a bunch of stuff in a rack.
Some more questions:
If they are a company shouldn't they publish some registration or VAT numbers?
1600 SeedMiner is more than 2.1 million pounds. If they got this nice chunk of money why they need additional 700 BTC?
If they had £2.1 million shouldn't they spend a few quids on a less doggy site and on some spell checker?
The domain registration address points to some residential area and those bungalows doesn't looks like a company HQ.

So, I agree at first view looks like scam.