Asus India — Charger is not working

Address: 560059

Website: www.asus.com

Order id: od[protected]
Order date:[protected]
Invoice date:[protected]
Vat/tin: [protected]
Cst #: [protected],,,,,, this is the datails of my asus phone,,,
1) it's charger is not working. And the product is under guarantee,,, help me out...
2) phone started hanging
3) when ever i switch on the camera and try to change the selfie mode to back mode,, it ask to restart the phone and after restarting only it works.
4) battery performance in very bad,, it is given 5000mah battery but maximum12 hour only it can supply.