Before signing, look at the claim quote. Claim Fund charges a fixed service fee based on 5% of the eligible quoted amount. Network fees and any token account rent are separate.
Found fees in the checker? Connect the wallet that earned them, check its live balance and review the quote. If you want to go ahead, approve the transaction in your wallet.
The public checker uses indexed data. When you connect, Claim Fund reads live balances onchain. A recent claim or new fees can change what you see between those two steps.