I was able to book using my companion certificate today but am not able to pick my own seats. It does say ticket pending and I guess it will until they get the certificate in the mail.
Is that why i can’t pick my own seat??
I’m Gold but would be willing to pay for MCE ahead of the 24 hour mark since it is a longish flight.

I was able to check the box for upgrade list using my 500 certs.
Any idea