I have problem with my iPhone 11

I have problems with my iPhone 11 and its

limited warranty Expries 17/05/2021

In mauritius island.

where have No apples store

but we have Poama,Apex and leal company which is an apple authorized services ,

He have diagnosed my phone and has already see the problem which is on the apple system

but they wont be able to change it/ repair it for me because of in Mauritius they received only Europe version but my iphone 11 pro version are from united states.

can someone assist me please

thanks