Question: when you request an upgrade from J to F and are waitlisted, what happens if you don't have the 30k miles into your account? Basically, I'm planning on redeeming miles for a J ticket and waitlist for F, but I wouldn't have the required 30k points and would need to transfer from Amex. If the miles aren't in the account when the upgrade clears, is it voided immediately or do you have a little time to top up your miles?