An email I got before when querying...
Dear xxx
Thank you for your email.
Please note that Airbnb is a direct partner of British Airways.
https://www.britishairways.com/en-gb/executive-club/collecting-avios/hotels/airbnb
Please contact [email protected] for your missing claim.
Thank you for contacting us.
xxx
Make sure you reach that email not the BAEC store.