that works better,
but still need an employee name (Cassandra...?)
and location to complete the voucher.

Apparently no need to hide or PM this anymore....

and looking at Cha-am Thailand I found a slightly different rate description:

APAC Friends & Family Voucher Program. No Advance booking required. Can not be booked more than 90 days prior to arrival. A maximum stay of 7 nights per hotel. Check with Hotel for any deposit and guarantee polices. Voucher needs to presented at time of check in.

and more:

The Friends or Family must be in the travelling party for the room benefit to apply. Once a guest receives a confirmation number for a reservation at the Friends and Family discount rate, that rate may not be rescinded by the hotel, regardless of any change in anticipated occupancy. The Friends or Family whose name appears on the reservation must present a valid promotion voucher at check-in including the name, location, email address and phone number of the employee they know at IHG. This voucher must be completed by the friends or family using the voucher. The Friends and Family Benefit voucher is not reusable. A separate voucher must be completed for each booking. The guest must present the current valid form of the benefit voucher at check-in, as this will be changed periodically to reduce the chance of misuse. The voucher can be downloaded from www.ihg.com/friendsandfamily.