This is my big frustration with this school district they say things at one meeting/phone call and then pretend like it was never said or change what is said. Is this common?
Unfortunately, I don't think it's uncommon. After each phone call/meeting, I suggest you send a brief letter or email that acknowledges (in a nice, polite way, of course) your understanding from the conversation. You may want to cc: someone in authority as well, although I guess that depends on who's working on the situation....
"Dear Ms. X, thank you for meeting with me to discuss DD's current situation. I was happy to hear that you are familiar with the IAS and look forward to reviewing it with you to determine whether a grade skip seems like the appropriate decision for DD...."
I think a lot of folks here have heard from some administrator that it's unlikely that a grade skip will be approved, only to have their DC grade skipped shortly thereafter. Keep your hopes up, and don't let them off the hook.
Wishing you the best!