Ugh I know how you feel.
Last year I took a daycare course with another provider and she was planning on opening a daycare some time in the future.
Sure enough a few months after her ad came up on certain sites and she had copied entire sentences of my ad.
It was pretty upsetting even though she didn't copy the whole thing but it was similar and there were at least 4=5 sentences exactly the same.
Even worse...I see her at playgroups we both go to and it is a struggle to see her and not say something at times.

I know how you feel. Your case sounds much worse. good luck. Hopefully now she will change it once she sees your message