MAN doesn't know about the 5 guest flexibility (or chooses to ignore it). I have had 2 instances in the last 4 weeks at MAN where i was told I couldn't have even 2 guests one week and 4 guests the next week. Their sign at the lounge still says 2 guests for GGL but the first week I think the agent hadn't even heard of GGL, let alone the 5 guests