If you use Salonized Pay, you'll get an invoice every month covering that month's transaction costs.
It's for your records only – you don't need to pay it, because the costs are already deducted from your Salonized Pay payouts.
You'll get it on the first of each month, covering the transaction costs from the month before.
You'll find this invoice, along with your other invoices, under 'Settings' > 'Billing'.
This is what the invoice looks like:
