Virgin Atlantic Airways - Delayed flight - Strugelling with expense claim for 6 months

Had a flight in May 2025 which were delayed for 24 hours, submitted a claim for expenses incurred that we were told could be claimed back. Submitted the claim and got an approval email on the 18th of May. It is now 6 months later and claim has still not been paid out. When I email customer care I only get a response that they are busy processing request. Unbelievably unprofessional service. Would not recommend flying with them!