URGENT: Certain banks banned until further notice

I’m very sorry to raise my issue again here, but in the other thread (Trade stuck before step 1 - #29 by alexej996) nobody seems to fully read and understand the problem:

It is impossible to open a dispute from within the application, because:

Pressing crtl+o opens a window, but when I click the button “Open Support Ticket” the window closes and nothing happens.

Are you aware of this bug?