How does fiverr protect sellers from scam buyers

[yafan987]

How does Fiverr support team protect its sellers from scammers who pretend to be buyers? They make orders then after delivery use their issuing bank to request a refund of their funds. The seller loses not only their time but their resources too and all the client gets is a ban. And they always come back under a new email new username and do it again over and over again but the seller is the one paying for all of that. I'd really love to know how Fiverr plans to back/protect their sellers from such fraudsters masquerading as buyers. Its really painful for a seller seeing their order get canceled after delivery with no valid reason or even a chance to rectify an error (if any available).