Hilton HHonors is offering 1,000 free points for updating the email address with the program.
The terms and conditions state that this offer would be targeted, but there is never hurt trying.
You can access this offer on Hilton’s website here.
Note that this offer is only valid until December 31, 2014.
When I just did this on my account, it just returned a “friendly error message” that I already had a valid email address on file.
Conclusion
There is no hurt trying to see if you Hilton HHonors account is eligible for these 1,000 free points.
Here are the terms and conditions of this offer:
Offer valid for named recipient only and is not transferable. You must update your email address by December 31, 2014 in order to receive 1,000 Bonus Points. The email address provided may only be associated with one HHonors account. Please allow up to eight weeks for 1,000 Bonus Points to appear in your Hilton HHonors account.