Dispatched our refrigeration technician to a commercial customer in Clayton, California. Upon arrival our tech checked in with store manager. Unfortunately she had no knowledge of there being an issue with any machines, nor did she of of any parts that had been shipped to the store. Called the main customer's contact and found that the part had never shipped. Our tech inspected the freezer and found the machine to be operating optimally, with no noises emanating from the machine other than what comes from normal operation. Called the customer back to let them know of his findings and they have closed the call out.