Here are the easy steps to follow to change your pledge.
Go to the Manage Your Pledge button on the project main page.
Change your pledge amount by adding $10.00 for shipping to each of your $89 pledges changing $89 to $99 per scooter or changing the $150 pledge to $160.
After you revise the pledge amount continue to next step
After you have changed the pledge amount a pop up screen will appear displaying the old and new pledge amount.
Next screen will prompt you to go to Amazon check out to update your pledge amount.
Final screen will be a confirmation of the revised pledge amount showing the pledge amount with the shipping charges included.
Finally you will receive a confirming email from Kickstarter showing your revised pledge amount changed to include shipping.