I Need Refund!

During my recent stay at a Hampton Inn & Suites, booked through Booking.com for 4 nights, I encountered an overcharging issue at checkout. Although my reservation had a confirmed total amount, at the time of checkout I was informed that I had been overbooked and was charged 512 USD in total, which was higher than the price I had expected based on my Booking.com reservation. I only became aware of this situation at checkout, when the final bill was presented, and I was charged more than the originally agreed amount. This caused both financial and emotional inconvenience, as I had relied on the Booking.com confirmation and trusted that the agreed price would be honored. I kindly request a refund of the overcharged amount and ask that the price stated in my original Booking.com reservation be respected. I expect Booking.com and Hampton Inn & Suites to review this situation and return the excess charge to my account.