Hotels.com has it’s own rewards program where you get a free night after you complete ten stays (worth the average night price). After being earned these certificates are valid for one year. Hotels.com is offering to extend these free night certificates by one year when requesting this via chat. Unfortunately it’s extremely difficult to get a hold of chat agents at the moment as they are mostly only handling customers with reservations in the next three days. Hopefully at some stage this is coded and all certificates that are expiring soon are extended automatically.
Hat tip to itsmychurn