PAX Agent and everybody else:
I do not know about BASSA's office, however Amicus office is opened thursday and friday. For urgent matters there's an on-call mobile number for both unions.
If nobody answers at LGW BASSA office you can always contact their LHR office.
Having said that, I contacted Amicus last week for an important issue that has nothing to do with the current events, and they left me a message last thursday to call them back which I did, in fact I called thur & fri numerous times, and nobody has called back or acknowledged my messages ever since
As if anything else other than these talks didn't matter anymore now
very professional indeed