Why do agencies have online booking on their websites and then never look at the requests? Had this happened to me twice in the past month. No names here, but you know who you are...
I like the convenience and it's easier to give references this way but it it doesn't work, why bother?

in the past year and used 2, have never waited more than a few hours for a response.  Not sure who you are trying to work with but sounds unusual.  They ARE in business to make money afterall.

I have filled out a contact form 4 or 5 times with no response.  I had to follow up with a phone call and 2 or 3 times they were like.  Oh, you filled out a contact form?  Yeah, it's a little frustrating!

I've probably contacted half a dozen agencies and independent providers via their online form over the past few years.  Only got a response from one.  They were more than happy to take my phone call though. I don't see why they even bother with the form.

Yep, the same thing has happened to me. I always get quick responses by emailing directly. Besides, how can you fill out a request form with a date and time requested before finding out the escort's availability on that day? Now I always email or call to ask first.