Product return problem

I am writing to formally log a complaint regarding the unacceptable level of service I received from your supplier warranty assistant team member, Jason, concerning a product return. After my initial inquiry, I waited several days without any response from Jason. I was forced to reach out to him again to get an update. During that follow-up call, Jason assured me that he would guide me step-by-step through the process of submitting my return. However, he provided no guidance whatsoever, leaving my return completely unhandled and my issue unresolved. This experience has been extremely frustrating. The lack of proactive communication and failure to follow through on basic commitments do not reflect acceptable customer service standards. I request that a different customer service representative take over my case immediately to guide me through the return process, and that this matter be escalated to Jason's supervisor for review.