I want to update my Airpods' purchase date

I have just bought Airpods for two hours. However, I can't active my Airpods' warranty and update my purchase date. Moreover, The limited warranty is August 10th, 2022 while my purchase date is November 14th, 2021. The warranty length is not fully a year. Can you help me to update my Airpods' Purchase Date? I received an Apple Supporting Call but I couldn't hear anything from the other side. 

Hope to see your reply soon. 

Best regards.