I am building a ruby on rails project. it is a portal. I have a situation as follows:

the user browses around. Suddenly he gets a doubt.

I want to keep a small text box and a button that says "call me".

To clarify the doubt the user can enter his phone number in the "call me" box.

now the back office personnel should get an alert or a notification about this.

I tried implementing juggernaut, but became a nightmare since the site is in a shared host and i couldn't configure the port.

Kindly suggest a solution.