Asus — Mobile phone poor service

Address: mathur hospital behind raiya tel exchange , 150 feet ring road rajkot

Dear sir I had given my Asus mobile phone that was well functioning for change of battery to the service station in Rajkot after the battery got replaced the mobile started malfunctioning its volume key stopped functioning the mobile stop taking recharge the Wi-Fi connectivity became intermittent the Bluetooth too stop functioning I complaint it to the service station and they assured me that the problem will be set right but they returned it after two to three days the problem still persisted again complain to the service station and they took for the service again and again the problem continued again complaint the third time the third time they kept the phone for 15 days and they rang me up telling me that the problem has been solved completely but after receiving the phone the complaint still persisted. there has been no improvement or any repair whatsoever from the service station a well functioning phone has been totally damaged by the service station I request you to kindly look into the matter