In Seiren War, there are 2 wallets: regular and pending. All your winning will be deposited to the pending account and will be held for 7 days before releasing to the regular account.
Wallet balances
Seiren War - Claiming screen
Or you have another option to claim rewords without pending. Initially, you need to press claiming button in navigation bar.
Claiming reword button
But immediately claiming SERG coins will requite to pay 20% fee for pending account funds.
