Emailed 'Shangri-la.circle@shangri-la.com' with proof of Marriott Bonvoy Gold Elite, asking to be upgraded to Jade. Also sent in proof of IHG Platinum to see if they could use either of them and give me Jade or Diamond. Gor a reply 'Kindly be advised that currently we do not have any partnership with other hotel loyalty program. We would like to share that our current exciting partner is Singapore Airline’s KrisFlyer only'