snap-affiliates?

[lat9]

Was a slef commissions allowed issue. But a few things...

That was going to be my guess! The default setting for Configuration->Affiliate Settings->Allow Self Commissions is false.

If a sale is refunded, the commission isn't taken back?

Snap Affiliates' commission-calculation happens one time ... when the order was placed. Use the Customers->Referrers tool and, when you "Pay" an affiliate you'll have the opportunity to conditionally-select and/or modify the commission-payment amount for each order.

Alao, I tried to "pay" a 0.30 commission and if I tried to pay less than $1, it kept saying a payment could not be zero.

I'll write up a GitHub issue on that; thanks for the report.