I had a HHonors Surpass a couple of years ago (which I cancelled) and I still have a regular HHonors Amex (no fee). Last night, I had a targeted offer in my online account for 100k Hilton points to upgrade to a Surpass. I scoured the T&C but could not find anything about not getting the bonus if you've had a Surpass previously. Doesn't mean it isn't there somewhere - I just couldn't find anything. Any risk to taking their upgrade offer?