The combination of a POUG and covid docs for the USA seems to confuse BA's systems greatly (we know it's not hard).

I uploaded documents a few days ago, and took the offered POUG outbound (and what I think was a paid fare upgrade for the way back, costing a bit more than the POUG, but since the underlying ticket is a stunningly expensive WT fare, the fare difference to WT+ may not have been very large) as soon as I got an email saying checkin was open (at T-24h). The MMB interface says I should upload docs or check status, but trying to do either says the documents have been checked. Trying to check in says that OLCI is unavailable, and that I need to upload documents. This was an agency booking in WT (employer-enforced agency and class of travel).

I called the Gold line, who answered after about 15 minutes mid-afternoon (take that, sceptics!), and they put me on hold for a bit, came back to say they had fixed some pieces of API, and that it should work in a few minutes. No such joy, even now some 7 hours after they said that.

Normally I wouldn't care that much, having pre-selected a preferred seat, but since I am now in WT+ I would have liked to try to choose a seat.

Suggestions on how to un-wedge the situation are welcome.