Price failure when selling NFT on BLUR

I list 5 NFT for price 5.283 ETH, 5.284 ETH, 5.285 ETH, 5.286 ETH and 5.287 ETH
But BLUR sold it for 2.283 ETH, 2.284 ETH, 2.285 ETH, 2.286 ETH and 2.287 ETH

For the first time after the sale, my price of 5.28 ETH was displayed on BLUR. But after a while after updating the page, 2.28 ETH began to be displayed

No support. I lost 15 ETH.

Another BLUR user was also affected. Circled in blue.