Apple Battery replacement in Pakistan

My question for today is there are many users in Pakistan who own Apple products but as the products age there battery health decreases significantly.. So from where in Pakistan can we get the authentic battery replaced. The price of replacement is not an issue.. If we can buy the product and getting it authentically fixed is not a problem even if it costs more than usual.

So if there is a support here in Pakistan please let me know. I found one authorised service provider in Pakistan upon asking if they do a battery replacement they simply just denied that we don't provide battery replacement. We just replace the phone if it's under warranty.

OR if apple can sell and ship the parts here in Pakistan would be great. Actually the great would be if they can start some Apple stores in Pakistan as well. Even Apple Wallet isn't available in Pakistan.. Which is just sad.