1、Log in, fill in the email and wallet address： 0x081Ea225fB53925331F1c87F1b64DAF9608377992、Select wallet tag Use Metamask USDC3、Start linking walletsQuestion: Why didn't I show up on the white list at this time?4、When I click Polygon, I need to pay $10 for the pop-up windowThere is no whitelist payment button left for me. Choosing any chain is asking for payment