wrong warrenty date

Hello! Thank you for reaching out to us. I am your Dell-Cares contact for order related queries. Unfortunately, our customer service is currently unavailable. We are available Monday through Friday. Please reach out to us on any of these days and we will be glad to assist you. Thanks for being a loyal Dell Technologies customer.

The system shipped sometime in early 2024, so it's either not new, or it was sitting on a shelf somewhere for an extended period of time.  Only your seller can answer the why.

If you're not happy with the answer (or having only the seller as warranty recourse), return the system to them for a refund if you have that option.