It took several emails, but then they finally bothered to answer my questions and not just send me some canned response that wasn't related to what I asked about.
We would like to advise you that you can collect Avios and Tier Points in line with the Executive Club terms and conditions.
You can calculate how many Avios and Tier Points you'll be able to collect using our flight calculator.
Please note the standard Flight Pass is booked using "L" booking class; if you choose the Freedom Option, the Flight Pass is booked using "B" booking class. (
http://www.britishairways.com/travel...r/public/en_gb )
When you have booked your flights using your Flight Pass, please go to Manage My Booking on ba.com to add your Executive Club membership number to your booking so your Avios and Tier Points are added to your account. (
https://www.britishairways.com/trave...g/public/en_gb )
As for the international flights, the first flight needs to start in London. So if you buy a London-Germany package, you can't start in Germany.