They similarly totally lie about matching the lowest price. Had the misfortune of booking through them once, then I found the same hotel for a much lower price on another site (makemytrip) so I sent a screenshot to the support. After a day they outright DENIED to honor this "Lowest Price Guarantee" with some lame excuse. When I told them that I'll go to the small claims court I never heard back from them. Don't belie…
Did you pay for the room with a credit card charge to Booking.com? If so it would be easier to dispute part of the charge with your card issuer instead of going to small claims court.
I instead wowed to never book another hotel on their site (using agoda ever since) and telling friends and posting on forums (it was on the frontpage on reddit india for 1 day) about how they cheated me. I think that must have costed them more money than they cheated me out by not honoring their guarantee.