I do this very often, sending an email yields 5%-15% discount on booking.com prices. But that works for independent hotels. What I write here about are chain ho

I do this very often, sending an email yields 5%-15% discount on booking.com prices. But that works for independent hotels. What I write here about are chain hotels, which have terrible online experience and contacted through email gave me 10-20% higher prices than online comparison sites (which also include commission for the site). Edit: this is in Europe though