If a provider is using her own pics there is no need to add this "If it's not me it's free."
I can just picture it a guy shows up or the lady shows up at his door.
He says "Hey,you are not the girl in the pictures I saw in your ad"
She says"You know you are absolutely right you got me.But,since I am here I will entertain you for free."
Yeah,okay sure that will happen.lol