How to tell my escort I no longer want to be her client?

We went on three dates so far and things went well. Had dinner and walks on all three of them and she said that for the fourth date we could get a hotel room.

Asked her for feedback and she said she found me polite, clean and would like to have me as a regular; however she criticized the fact that I once brought more money than her exact fee, because she said that when she makes a price it's that, not more and not less, and also that I when she makes me a compliment I say it's not true and that she's saying it just because she's paid to.

Because of this, I no longer feel comfortable with her and have already cancelled our next date. Now she's asking me what happened and if she has to get the agency involved.

Should I tell her or fill a complain? I don't want her to contact me ever again.

Updates
+1 y
Her last message was
"I'm regretful and a bit disappointed you don't feel it's a good match when I was looking to give you more bookings. We can rearrange and have another dinner date if you don't feel comfortable for a full date. Please let me know and I'll put you in my schedule."
Updates
+1 y
Update
I blocked her number but did not file a complaint and instead left a positive (but not gushing) review. The agency let me know she's still willing to take me back as a client and in the mean time I can always book with another provider.
Thank you everyone for your answers.
How to tell my escort I no longer want to be her client?
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