0.9.4 update: trade limit doesnt work correctly

Yes, you should ask for a refund for the fees since they seem to be due to bugs.

The way that Bisq is built, it is likely that the account age only updates if both traders have updated their clients. If the other trader still thinks someone with your’s account age can only trade half of the amount, their client will not allow you to take their offer.

It could be a different story if you created an offer yourself.