I applied for the Chase card to get the 10% off, I bought 2 tickets in WTP to Europe but link did not let me apply the discount on Ba site because the last flight is a AA codeshare ? Is this the way this works ?
I did the booking on Ba website, follow the links, have 5 flights and because the last one is a codeshare with AA the discount does not work ?
Any other way to do it ?

https://www.britishairways.com/trave...club/_gf/en_us