What can I do if an escort blackmails me?

Sir escort service provider is blackmailing me to pay 10 k and now demanding 5k.I have not done any sexual relationship with anyone,but still he is blackmailing me for money after talking on the escort sevice no. provided on site.I have just talked and asked the for service detail on the escort number provided on the site,but he is blacking me from today afternoon.i have just asked that what that if a male wamt to work then can he work.I just asked this question to know how are they functioning legally.But he started blackmailing me for the same that i will make your name viral as a sex rakeder.He started blackmailing me now.This matter started from today.He is saying me that i will make your photo and number viral on escort service .He just made my photo and number viral on his whatsapp number and blaclmailing me to apy 5k now from 10 k.