Auction house reclaim car issues

Is anyone having issues reclaiming cars from cars that havent sold if so does anyone know a fix for it?

I’m not having problems with reclaiming them I’m having problems with getting the full amount of money people have paid It’s taking nearly half of want they sell for and only given me half of it I just sold a Ferrari 250LM for 8 million and only got 4 million for it anyone no how the fix it