I have happy been a Hilton Diamond member for a very long time. During the last three years I have stayed in Hiltons very little, certainly not enough to justify any Elite status, much less Diamond. Still my account stays Diamond and I get Diamond benefits whenever I am in a Hilton property. Does anybody know if there is an official Lifetime Diamond status that could explain this? If it is a mistake I am quite lucky, but I suspect there must be another explanation. I hope some of you know.