I am travelling a business class flight with Singapore Airlines. I am a velocity platinum. I have a friend in economy on the same flight. Business class does not normally let you have a lounge guest and you need to use Silverkris lounge. Will we both be able access the Krisflyer Gold lounge at Changi Airport due to my velocity platinum status? Normally not a problem when in economy, I am not sure whether the mixed classes makes a difference. Thanks for any help.