When I was digging for the “Select Member Exclusive” promotion that I have written here and here, I came across yet another promotion that appears to be for double stay or night credits for targeted members.
I am not 100% sure whether this is a current or some expired offer, but SPG usually retires the web pages for promotions that are no longer valid.
You can access this offer here.
You can check your eligibility for this offer by plugging in your SPG account number.
Conclusion
If you received this offer from SPG or were able successfully to register for it, please send me the link for the terms and conditions. Like I said above, I am not 100% sure if this is a current promotion, but cannot recall SPG running something like this in the recent past.