Pre booked seats appear available

[jobelly]

Has anyone come across this before? I’ve booked a virgin package for first time in ages and we’re flying Edinburgh to Atlanta and onto Orlando, both delta flights. I pre booked the seats a while ago but today was wondering how many seats are available to see what cost would be to upgrade. I did a dummy booking and two of the five seats I have booked from Edinburgh to Atlanta are available to book. I went into the app and they’re definitely showing booked with the seat numbers.
I’ve sent an email to the virgin contact but she’s on holiday so not sure where to go with this. I’ve only flown BA for last few years and normally just book the seats a week before so not had this problem with them. I don’t want to check in and find we don’t have seats together after booking so early.