Booking.com NO REFUND since 22 July 2024

Since 16 July, I've been waiting on a refund from Booking.com for checked luggage that was not paid for by them. Booking.com told me to pay British Airways for the luggage and I would be refunded within 3 working days. Our flight left London on 22 July, to this day, I've been promised by over 10 agents: they are processing the refund, they have escalated the refund, and the latest, "The concern team is working on the baggage refund. We request you to wait, the concern team will get back to. We genuinely appreciate your patience and understanding during this time." Booking ref ***