Thanks for the heads up, and indeed "A technical problem has stopped the offer from being activated" for me as well.

The most relevant point of the terms:
"4. This offer is valid for a member’s stay from [15 July 2025] to [31 December 2025] in one of the participating hotels in [Bahrain, Benin, Botswana, Cambodia, Cameroon, Democratic Republic Of Congo, Egypt, Equatorial Guinea, Ghana, India, Indonesia, Ivory Coast, Japan, Jordan, Kenya, Kuwait, Lao people's democratic republic, Lebanon, Madagascar, Malaysia, Maldives, Mauritius, Myanmar, Namibia, Nigeria, Oman, Pakistan, Philippines, Qatar, Rwanda, St Helena, Saudi Arabia, Senegal, Seychelles, Singapore, South Africa, South Korea, Sri Lanka, Tanzania, Thailand, Turkey, United Arab Emirates, Vietnam, Zimbabwe, Australia, New Zealand, Fiji Islands, French Polynesia, Mauritania and Iraq ], and booked between [9 July 2025], through 11:59 p.m. Central European Time (CET), [31 July 2025] for Member of ALL"