Dell India — problem in keypad

Address:

Kolkata, West Bengal, 700006

My dell laptop is in warranty. All other buttons are working properly but double/single inverted comma button is not working properly. Kindly look at this asap.
Even chats with dell customer care is not happening and after downloading the troubleshooting software from dell website, its not working.
Kindly look at all these problems as soon as possible.