Reservations 800 55 HYATT Hyatt Customer Service 800 634 3839 Slice of Paradise Customer Service 877 751 8043 Travel Agent Support 800 634 3940 Commission Hotline Region Hours Phone Toll Free Americas 8a-6p CST 718-873-9070 1-800-422-1212 UK/EMEA 9a-5p +44 203 701 4250 44 (0)20 8604 2240 Singapore 9a-6p +65 3157 3209 65 6260-9460 Email: commissionresearch@onyxpayments.com Website: www.onyxpayments.com Meeting Connection 800 543 1818 Hyatt GDS Code: HY