Notebook Operating System and Recovery

I purchased a HP Laptop - 15t and the HP 3 year Pickup and Return with Accidental Damage Protection for Customer Notebooks. My warranty expires on 12/21/2022. On 12/11/22 my little nephew spilt water on the keyboard and my laptop died, I called the warranty department and they told me my computer was still under warranty and sent me a prepaid box to send it to the repair center. They received my laptop on 12/17/22, and it took them almost 2 weeks to contact me. When I was contacted, they told me they couldn't do anything because my warranty was expired. I've talked yo several "Escalation department agents" since my case was sent to their department; I explained that HP received my laptop BEFORE my extended warranty expired, but they do not want to HONOR my warranty.... I am extremely frustrated because when I called the warranty department, they told me that my warranty was VALID as long as HP receives my computer BEFORE or ON the day the warranty expired; however, they haven't honor this. What can I do? I am very upset because it's been over 6 weeks and HP does not give me a resolution... Who can I contact? PLEASE, HELP ME!!