I've given up.
- Got my activation email (finally)
- Installed the app (which did something to chrome as all my webpages automatically reloaded, causing me to lose some stuff, and the need to reload a video)
- Loaded the app to make sure it worked, signed in fine.
- Go to buy a game, need to register credit card - no where to enter card details within app (at least not obviously?)
- Close app, go to bed.
- Today registered my card on website, takes 5 minutes to update the details, just sat there "Uploading...."
- Reopen app, try to sign in, network card crashes (never done so before)
- Fix network card, try again, takes 5 minutes to login
- Go to buy a game and it complains that I need a valid credit card
Too much hassle - i'll stick to Steam/retail for now. Maybe try again sometime before this £1 offer is over.