That's very sad news. You did the best you could do given the circumstances. Don't lose heart.

Just one thought...can you or did you get this is writing, in blood, notirized, whatever. Previously, they were okay with all, 20. I would hate to see them change it on you yet again.
I completely agree with this. Do not rely on ANY oral agreements, get everything official and in writing, so you don't have to go through this again.