Before you fill your balance, we highly recommend to create and verify the first creative.
You can find Payment section on the left corner
Fill up your contact information (You need to fill it only once) and safe.
You will have 2 options:
(1) Pay directly in your memberzone (via Paypal or Credit Card)
(2) Request invoice (Paxum, Payoneer, Wire, Capitalist)
The minimal amount for Alternative payment methods is 50 USD. Request invoice and got it by email in 1-2 business days.