Hi,

i am due travel WT+ on BA0228 on the 24th from Baltimore to LHR.
On the way out I was unable to check in online but was fine on arrival to the airport.
on the return flight I am travelling with a colleague and so we had planned to pay to reserve seats in advance - however the app and website shows no available seats (for either of us).
Does this mean the flight is overbooked? a but concerned as the same thing happened to me in SanFran last year and they put me on standby.

thanks for the help in advance!