How do I donate money to a charity on Coinstar?

Excuse me, I'm curious about how I can donate money to a charity through Coinstar. Is there a specific process I need to follow? Do I need to select a particular charity from a list or can I donate to any charity of my choice? Also, are there any fees associated with making a donation through Coinstar, and how do I ensure that my donation is securely processed? Additionally, is there a limit to the amount I can donate through this platform? I'd appreciate any information you can provide to help me understand the process better.