I'm having trouble connecting to Boingo hotspots. From the Boingo front page I can select the btopenzone partner login, but I'm asked to enter my username "including @btopenzone.com". I enter my BTFON username which ends @btinternet.com and my usual password but this is rejected by Boingo as invalid. I've double checked that I'm using the correct username / password combination by logging into the BTFON account details site. Does anyone have any idea what the problem might be, or even where to report/escalate this problem??