iPhone warranty less than 1 year

So recently i just bought iphone 13 from an authorised apple reseller at Malaysia which is machines. The date purchased is yesterday which is 26 of April 2023 but when i come back home to setup the new iphone 13, i then realised on the setting that the warranty date will be expired on 13 March 2024 which is obviously not one year period? So i would like to know if maybe the unit i bought was the tester version because they never told me it is tester version (i paid full original price) or the staff have used my iphone 13 before. What should i do? Because this is official authorised apple retailer shop in Malaysia… pleas i need help 🙏