one tile scratched

[Tally101]

Had the en-suite retiled last year but one tile now shows scratches on the tile , if I rub it to clean it , it seems to go but comes back , any way of getting rid completely
thanks

 

[Wayners]

Looks like pencil marks so try meths.
Other option is a china rubber.

If it is scratches that has damaged glaze you need to replace tile.
Spares are sometimes left under the cabinet plinth

 

[RandomGrinch]

Is it a matt, or glossy tile?
If glossy, a little bit of Brasso can Polish out minor scratches in the glaze - though it's worth testing on an inconspicuous area first.

 

[opps]

https://www.tilinglogistics.co.uk/blog/how-to-polish-porcelain-tiles-and-get-rid-of-scratches/