I usually manage to request special meals without a problem (flying TATL with skyteam). Now ik booked a trip with one leg AA and one Ibera.
The problem is that they give me no seemingly no possibilty to request my special (vegetarian) meal on the respective websites. (AA doest't show the option, and IB doesn't process the request)

Now am I wondering whether this is something that can be solved. I do realise i am flying on the lowest possible fares, but i hope they don't exclude me from this service for that reason.

Is there anyone that has some hints?