I really don't know how to request a refund, but I would probably do it in person. They can tell you to whom you should speak.
I would go in to the place you made your purchase and talk to someone there.
Hello! I'm one of the managers at the Woodinville Panera. We would definitely want to hear from you if there was a problem that we could alleviate including a refund if necessary. Please don't feel uneasy approaching one of us, we are there to serve you!
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