Solarflares: One thing I noticed to WGT's detriment is that wherever your cursor is on the game-screen - whenever the "un-equipped rentals" splash-screen appears , the cursor is mysteriously placed over the "purchase" button.
LOL must look for that.
I assume this is considered an "in-game" purchase, there is no confirmation required? Click and it is yours
Personally I think every purchase should have a confirmation button. By not doing so probably earns good coin for WGT, and many will not complain or email CS (which if you do, they are usually pretty good).
I know I have been pretty pissed when clicking on the HIO challenge or a CC Pass - if I do I can't be bothered emailing CS, I just log out so they lose on ball usage.
Working on the adage there is a sucker born every minute is not sustainable or good business practice.