You got lots of information when you asked about the last trip.
Are you asking something different this time?
UA will have food for purchase in economy.
Can you try calling them?
Are you shilling for this company? It’s nonsense, you can do this yourself directly with the airline.
What resolution do you want?
I’m not sure this is “owed” to you, but you can always try.
You have a regular economy ticket.
It's not a problem.
What does Saudia have to say about your ticket? You don't say when you are flying; maybe this dispute will be over by then. If it's soon, call the airline.