Why do I need to put a credit card down to make job inquiries?
For contract work (project-based and hourly), the hero is the one that pays the fee. We recommend that you add 10% to your normal rate for the rate that you charge the client, so that it doesn't come out of your pocket.
When payments are received by you, we will charge your card for our fee.
Sometimes for full time jobs we also ask the applying user to put a credit card down. This is not because we are going to charge the card but it helps as an additional validation signal.