How do I contact the project creator?
If you'd like to contact the project creator directly through Kickstarter – click on the "Created by" link at the top of their campaign page, then scroll down to the bottom of the creator info and click the blue button "contact me".
Kickstarter help article: https://help.kickstarter.com/hc/en-us/articles/360011239834-How-to-message-a-project-creator
If you'd like to contact the project creator through Indiegogo -- On the top right side of the Indiegogo page, there is a link that says "Ask a Question", click that link to contact the project creator directly.
Indiegogo help article: https://support.indiegogo.com/hc/en-us/articles/526826-How-do-I-contact-the-campaigner-