What AF base do you go to? I can call and make a nasty call to them if you'd like... they hate to see us pissed off. Either that or I could call and ask for a discount for you because of their ignorance to not answer phones.
I'm sorry your kitties are not feeling well. Best thing to cure fleas is Frontline, though with everything else you may be able to go to a pet supply store and find the tapeworm medicine. It usually comes in a liquid form which your kitties will eat like it's going out of style. Though I don't know where you are, some states don't sell stuff like that because they want the vets to make all the cash. Or you could go online to Petmeds.com (I think that's the site) and look online for things your babies need.
If all else fails... I blow the place up for yah.

Or give you another phone number that they can be reached at.