Yep, you are correct for rental prices, I was comparing with a modest sized city elsewhere, rather than a European capital
Don't know about asking for more money though, I doubt they would bite on that one
During Summer they can have experience in the left seat via contractors, in the RHS they are not too worried about the experience level & there are any number of keen young lads willing to pay for TR's to get a job. Even if airB had to foot the bill, it is all done in house as they are a TRTO, so doesn't in reality cost that much.
Sure you can always ask to be slotted in on a higher payscale. . . . but
Well, I wish you luck if you try, but I suspect they will merely take someone else instead who accepts what they offer.