A quick look at the IRS site suggests that it may be more efficient to talk directly to an IRS person. Odds of doing that successfully prior to at least April 16 are probably miniscule due to the tax filing deadline that's coming up.

Another possibility - if the person administering the account did not get adequate help from their bank - is to talk to another bank. (And/Or go back to the first one and tell them you're thinking of moving the account elsewhere because they weren't helpful.) The bank that wants your group's account should be able to answer your questions.

John