I thought it was only on the free thing recently, all my other orders (Both as Bundles and on their store) that I made yesterday and today have no expiration
I bought a cheap thingy today and it said I only had 6 days, same for the free things, perhaps it's case by case or something:/
Bought a cheap game just now for the heck of it, no expiration. Only (Steam) thing I've had with an expiration has been the free lego game today