In the UK it's the seller / provider of the phone that one should approach for support however a Samsung Experience Store or Samsung Service Centre would only be too happy to run a diagnostic test on the phone for you @Tarun1
" I noticed my phone turns off after I put it on charge over night and won't turn on. "
Will the phone not turn On at all ?
If it will turn On is your phones firmware up to date ?
Can you put the phone in Safe Mode which disables your downloaded apps and leaves the stock ones working to see if that helps. If it helps then come out of Safe Mode and start deleting your most recent apps one at a time.
If it does not help then back up and factory reset.
I wish you all the best with this situation.
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "
