Dell India — dell optiplex system not working

Address:

147001

Dear sir/ma'am,
This is a request to repair an all-in-one system of dell (7440 optiplex), which is not working. The service tag number of the system is 153b9f2 and the express service tag is [protected].
Kindly repair the system as soon as possible, it's been only one year since we bought the system
The system is not turning on at all, there are important data in the system.