The fee for using the Prenza service as a buyer of hash power is determined in the fee schedule and is applied to the amount you have spent on your orders (the unspent amount is not charged with a fee). Note that there is no fee for cancelling an order, but a small, non-refundable fee is taken for each newly placed order to prevent order spam.

When withdrawing funds from your Prenza wallet, a withdrawal fee will be applied.