Okay first of all, we're EXTREMELY sad to see you go.
Second of all, be sure to use ALL your download credits be sure you leave/downgrade.
And lastly, here are the five simple steps you need to follow to cancel your paid account:
1- Log on to your Motion Array account
2- Go to My Account
3- Choose Manage Subscription
4- Select Free Plan
5- Click the Downgrade Account button
That's it! After going through this process, you will not be charged again. Please remember to keep your previously downloaded items stored on a hard drive or your computer's desktop. Free accounts do not have access to paid content.