It rolls over. If you do not reach $10, your money roll over to the next months.

It rolls over and you set the amount at which you'd like to cash out your savings

It rolls over, so you can keep building until you get up to $10 or over. It also takes a few months for the full total to become payable.

Sure you do! My first payment was actually $2.56. To figure out how much then go to my paymenbyour payment will be, just log into your account and go to the "my cabin" link or icon (depending on if you're using a tablet or PC) then go to my payments or my check and it should tell you how much your owed!