What and when does SPIKE charge its users?

There are three kinds of fees. These fees are charged to a seller. Buyers won't be charged any fees other than the item price. 

Payout Fee - At the time of withdrawing money to your bank/PayPal account.

Refund Fee - At the time of refund requested by users

Chargeback Fee - At the time of chargeback for a specific transaction

See more details about SPIKE Fees