All of their alternative URLs (gun-fire.co.uk, gun-fire.com, gunfire.pl) now redirect to gunfire.com. Their SSL certificate is only good for gunfire.com and Chrome now (correctly) kvetches if the certificate doesn't match the domain.
My account is OK, I can't speak to yours.
The site is treacle slow of an evening, and their stock is all over the place. Only 4 out of 14 AEPs are in stock, 18 out of 51 SMGs. When they finally restocked extended AEP mags, they sold out within a couple of hours. I've set up a whole bunch of restock alerts, but the chances of them having enough of what I want in all at the same time to justify the postage cost seems fairly low. Sad times.