@Switch BlaydeLazeez finally released a fix (allowing for different payments to each pen name) that allows authors to set their payment plans. The default is to mail it via snail mail, which Ernest will appreciate, as the ONLY alternative is setting up a PayPal email address (since Ernest can't use PP in Australia).
The 'payment' setting is now available via the settings in the upper right corner and click on the pencil icon. If your payment info. is NOT set, the information will be highlighted in yellow.
Update: Alas, the new settings aren't clear. The ONLY setting is on SOL, not Bookapy, and the ONLY email address is that associated with your SOL ID, and NO setting to choose PayPay or not. That means (supposedly) that your payments MAY go to an incorrect PayPay account OR to a snail mail account via check, as there is NO way to select one option over the other. Apparently, if you HAVE an email address (which we're forced to enter when creating an account), it supposed to default to that as your PayPal account.
Hopefully, we still have time to work out the details before the payments are sent out.