Once Driven trolled craigslist or my info on car ad Internet

I placed an ad to sell my car on Craigs list and less than a day later I'm getting a call from Once Drive. Aaron left me a msg stating he has clients interested in my car and he can sell it for me but there is a small fee. I know when I posted my Craigs list ad I specifically stated NO SOLICITATION. I have a picture of my ad that shows where it states NO SOLICITATION. I’m truly sick of these companies and ppl thinking this is good business. If I wanted to pay fees to sell my car I would have gone that route.