Hello, Mary -
Fixya.com, where you posted your question, has no affiliation with ChromCast. But . . . do you really mean ChromaCast and not ChromCast? Fixya has no affiliation with ChromaCast, either.
If you meant ChromaCast, you will need to contact ChromaCast directly. This is the link to the ChromaCast home page:
http://www.chromacast.com/
In the upper right corner of the home page, you will find the Contact Us link. Click or tap on it to see the email address and a form you can fill out to send an email.
Best wishes.