I'm looking for flights from LHR to EDI for May next year, and am finding that BA don't seem to be selling seats in Club at all from LHR. Google flights just finds nothing on BA if I search for Business class, BA.com shows me flights from and to LCY, but nothing from LHR. The normal number of flights are available from LHR in economy. I'm looking at 14-18/05, but it seems to be other dates around then as well. Any ideas what's going on?

Apologies if I've missed a thread about this