Booking.com Double-Charged My Greece Reservation – Partial Refund Only

I booked a hotel in Kavala, Greece, through Booking.com, and during the reservation process, I was mistakenly charged twice. Upon realizing the double charge, I canceled the reservation. Since then, Booking.com has only refunded one of the two charges. Despite completing every form and reaching out multiple times for assistance, I am still waiting for the second charge to be refunded. The lack of resolution and responsiveness from Booking.com has been deeply frustrating. I am seeking immediate action to have my full refund processed and restore my confidence in their service.