Try opening a home page http://www.bjs.com/ (not the link provided here) and scroll all the way down. Under Featured Services towards the right you see the banner.
For users attempting on mobile:
looks dead, said trial membership not available at this time.
edit// apparently doesn't work on mobile, clicking the green button does not work. follow OP's link in description and on mobile request for desktop page, you will see the banner on the bottom left. I signed up and worked, received confirmation email.
This post can be edited by most users to provide up-to-date information about developments of this thread based on user responses, and user findings. Feel free to add, change or remove information shown here as it becomes available. This includes new coupons, rebates, ideas, thread summary, and similar items.
Once a Thread Wiki is added to a thread, "Create Wiki" button will disappear. If you would like to learn more about Thread Wiki feature, click here.