Department of online consultations on refrigerator repair

There's a service center website. Recently, refrigerator repair is very popular and many emails are sent on this topic. In email correspondence, this whole thing is not well organized. In this regard, there is a desire to organize under the domain "Department of online consultations on refrigerator repair" namely refrigerators. I mean. The visitor enters the page, enters his e-mail, name and phone, and is connected to the chat, where the operator (our specialist) will advise him.

It is necessary to make the chat available and visible from the site only to visitors from Moscow and the Moscow region. Everyone else should write this on e-mail - they are not interesting to us, because we are not interested in them. There are no potential customers among them.