Yep, with Chrome, Firefox, Safari. I'm not a premium user though.
Stragnly I believe this is problem in the platfomr itself. I think htat some has activated my free trial on my iPod, but i see the free 30 days on the site. I still can't explain why this is happening.
If you receive an automated email that leads you back to the community or help pages, reply to it (even if it's from "no-reply") and one of the Spotify team members will get back to you as soon as possible.