Did you buy the phone directly from Samsung in your region or from a reseller ?
What has Samsung Support advised ?
Check what your consumer laws are i.e for example in the UK the seller of the phone has to provide support in the first instance.
May I ask what " problematic " issues are you experiencing and what troubleshooting have you tried so far.
Has the phone been assessed by a Samsung Service Centre ?
If you can provide more information we maybe able to offer further information and help 👍
I wish you all the best. 
