As someone with both technical knowledge and purchasing power, I've run into this frustration as well.
It's always pretty easy though to say "we like your product, but we want more information as to integration possibilities. Can you put us in touch with someone on your technical staff so we can ask these questions?"
Everyone company I've run into will at least give you an email contact, and all of the smaller ones (less than 20 persons employed) will just transfer you to the tech department directly.
I've done this with everything from hardware purchases to $7000/per cpu database software.
It's always pretty easy though to say "we like your product, but we want more information as to integration possibilities. Can you put us in touch with someone on your technical staff so we can ask these questions?"
Everyone company I've run into will at least give you an email contact, and all of the smaller ones (less than 20 persons employed) will just transfer you to the tech department directly.
I've done this with everything from hardware purchases to $7000/per cpu database software.