Getting seats selection thru MMB after booking thru OTA
I’m trying to book an open jaw. Arrive into LHR and departing from CDG. Can’t book on the app or website. But it’s possible thru OTA. QR app/interface recognises OWS status and allows advance seat selection at emergency exits. But I don’t know if it does if tickets are booked thru OTA.
What do people suggest?
Book on phone or thru OTA?