This was a super helpful thread, thank you.

I did via twitter, then phone, a switch to K class (via $$$), then an upgrade to D1 to LHR via miles.

After getting my seat in delta one, I noticed the miles weren't deducted. Originally, I wasn't going to do anything, but this thread made me proactive.

My receipt on Delta.com had it as a KU fare and the same ticket number as the coach reservation.

Asked on twitter if everything looked good and they said yes, but waiting for reissue. I asked them to reissue the ticket and the 65k miles were deducted and I got the award redemption email, but no new "Your flight receipt" emails. The redemption is on my account, but it doesn't have a ticket number or destination. Is that ok?

My receipt on Delta.com now says OY and status: open. The ticket number has changed... first number was my old T fare ticket... second was the upgrade to a K fare... then the third number is this new one.

Should I assume I'm good to go? Its on Monday and I'm battling a nasty cold, so having a bed on this flight is going to be crucial...