Address for Return Merchandise for Farouk systems inc?

I had bought a Chi flatiron for my daughter, and after 4 1/2 months, it quit working. It wasn't dropped, nor did it fall off of something. It was actually in her hand when she realized it was not hot anymore.

It has a year warranty. I need an address to return this and to receive a new replacement for it. I purchased it at Costco Wholesale warehouse. I do not have the paperwork on it. Sorry.

thank you for your prompt attention to this. She loves it , and is really missing it !