How to pledge in crowdfunding?

If you want to pledge to a project, choose the project you want to contribute to and open its campaign page. You'll see info about when the campaign ends, how much money it has collected so far, and how many backers contributed. To support it, click "Back this project". You'll be transferred to available rewards and add-ons. Choose the items you want to purchase and add them to your cart. You can also leave a tip for creators for no reward:

If you want to edit your pledge, click "Manage your pledge" on the right. When your pledge is finished, click "Submit pledge", or "Check out". You'll see a summary of your pledge, info about shipping and payment. At this stage, we'll only verify your card. You can cancel your pledge before the campaign's end.