Apple India — iphone 6s complaint

Address: Gwalior, Madhya Pradesh, 476001

My iphone 6s creating a problem regarding charging issues im going to icare and send my phone to the authorized service boy he said me for change the battery and im ready to change the battery or pay the amount after changing the battery iam came back to the home the problem of drain battery was again happened and charging battery showing but percentage not increased im very sad after facing this bad behaviour of icare