if its a paypal dispute then Paypal it appears are inundated with claims mainly from buyers that bought tat from these China websites or Social Media ads ! So all claims are being pushed back unfortunately.
As long as yours has been escalated from a dispute to a claim, and is still being reviewed then you have the chance of a refund. Sadly you will have to wait it out in the long queue though.
Advice is voluntary. Kudos / Solution appreciated.