I'm part of the newish UKeBay Plus Points scheme (you get eBay 'points' for every service which you can cash in every so often against a future purchase). I've noticed some of my wins weren't being credited & raised with eBay support - they've confirmed it's my AS wins that aren't being picked up:
I've noticed that you've purchased the said item whilst you're logged in on eBay.com. To earn eBay Plus points, your concerned items must be purchased on eBay.co.uk alone.

I don't think there's another way of using AS to get around this at the moment - I'll raise with the support team, but mention it here in case anyone else is collecting Plus Points.

Cheers,