I realize that they are extremely busy but why is ...

I realize that they are extremely busy but why is it so difficult for someone to take two minutes to respond to a voicemail inquiry.Two messges left over 4 days. All I want to know is if I can bring my dog in while I'm looking at others dogs because it's required (and should be) that my home pet meet the adopted pet. I really want to look at a puppy that's currently there but they won't even respond so that I know it's still there and I'm not going to drive half an hour there drive all the way back home to get my current pup, drive all the way back for the two to meet, then back home. Isn't that a big absurd. I certainly don't want to leave my pup in the car for hours but I can understand if bringing in my dog would be too disruptive. Isn't there at least one volunteer to help with dog adoption questions that aren't on the site.
Now I see the pup I was interested in yesterday is now gone and they couldn't take a minute to let me know. Thanks a lot