Samsung India — Samsung j2- i got my lcd replaced and now phone not switching on

Address:

Kolkata, West Bengal, 700038

My samsung j2 screen was giving problem so i went divine electro solution (391/123 prince anwar shah road kolkata-700068) and they asked me to get it replaced. I paid rs 2900 and gt it replaced and as soon as i went home within 3 hours the phone is now not switching on.

This is absolute harrasment my phone is a brand new phone within 7months and was working fine.
First they asked me to replace lcd and now phone is not switching on.

Please look into this as i am frustrated with samsung.

I have a doubt this service centre has changed my parts or has given me some other faulty parts.