Hi Inzhu102,
There is apparently some lack of understanding among the people helping where the term "authorized retailer" concerned.
We don't know the status of the store where you bought them in your country, if it is authorized or not.
If Apple does not sell their equipment in your country at all and your store owner goes to a different country and buys a bunch of Airpods to sell in his store in your country, that person is not an authorized reseller. As far as Apple is concerned the Airpods have a warranty start date when the store owner bought them and you will have to accept that.
If your dealer is indeed authorized by Apple to sell Apple equipment then that dealer should have provided to correct sale date to Apple. It is possible that your store owner simply didn't get the paperwork filed correctly and your Airpods have the wrong date with Apple. This support article tells you how to resolve that:
Update your proof of purchase - Apple Support
To update your information contact Apple Support by phone. Tell the advisor that you need help with your Apple Limited Warranty or AppleCare plan expiration date.
Here’s what you need when you call:
- The device serial number
- Your sales receipt
- Your AppleCare agreement number [I presume this is only necessary if you have an AppleCare plan on the item.]