How to cancel my account

Hello how to cancel my account.Its a mistake I didn't want to rent my home .Just wanted to see how it works . Didn't know booking already give my home page reservation and payments from customer,without me to set up calendar or without too activated or to accept for reservations.shocking ,and I can't call anyone to help from Booking.Now 3 hours I'm trying to contact customer service ,and seems booking managing team is a mirage