Originally Posted by
CKBA
The flight(s) were BA owned and operated flights, the ticket bought through AA. When I checked before the flight, the BA itinerary stated 70/20 Tier Points - but post-flight only 35/10 were applied to my account (which is what has happened before). So I suppose the question is why does the BA system before the flight 'award' the higher Tier Points, then downsize them afterwards?
If it was an AA codeshare (AA8888 or whatever) of a BA operated flight then the flight would credit as an AA flight and will earn avios and TPs as if it was an AA flight. An AA flight in H class will earn the discounted coach avios and TPs. The fact it was a BA plane does not determine the avios and TPs, what is important in this case is who the marketing carrier was.