Green line down screen

[Quato9]

My phone has a vertical green line down the right hand side of the screen,does anyone know how to get rid of this.I have tested the screen in test mode and it is still there also booted the phone up in safe mode and it is still there.The phone is seven months old and is well looked after.

[RottenFoxBreath]

Send it off for service, it's either been knocked or dropped, and the screen/screen ribbon is damaged.