I purchased the ticket from BA over the phone, it is a 'visit europe' ticket, an official oneworld product sold in conjunction with a TATL flight one a oneworld carrier.
The problem is when I call BA, the agent has never heard of the fare, and has to call the fare desk. So it takes 20 minutes to answer a question.Being on the busy side (and travelling where I don't have good access to cheap telephony) waiting 20 minutes for one repricing/etc is unattractive.
I asked if they can email or fax me a copy of the fare rules, they said 'no, we will not' which strikes me as a little bizarre.
Fewmiles site has a description for the fare that is now I think 7 years old, and is broadly consistent with what I've been told--my remaining uncertainty is whether, if I pay the EUR 30 rebooking fee to go from 3 segments to 2 segments, I get 50% of the cancelled coupon or 100% (less of course the change fee).
Anyway, at least I may hope my grumbling will serve to warn others who are thinking of buying the product but may need to change it.