If someone has collected funds on your behalf and they’ve transferred their WePay account to you, you’ll receive a ‘Reset Password’ email from WePay that will allow you to set a password and gain access to the account.
Once you've logged in, you just need to click on the 'Settings' icon and visit the 'Trust Center' tab to finish entering in your personal information.
When you're ready to withdraw your funds, click on the 'Withdrawals' tab to enter your banking information.