One number, answered by a person, 24 hours a day. If photos are easier than explaining it, send those instead.
Call — the fastest route
A person answers and asks what you are looking at. No queue, no callback form, and no price quoted before someone has seen the wall.
The free assessment form takes a few photos and the story of what happened, and it reaches the same dispatch desk as the phone line. It is the better route when the growth is somewhere awkward to explain.