bought online from GC because they don't have it online, i tried to remove it by rubbing but theyre scratches how the hell does this even happen
I HOPE u mean 400 ! I would use 1200 or even higher. But that doesn't look like scratches. Looks like either they finished the maple with frets in like fender but didn't clean it off, or some sort of corrosion. In any case some metal polish or fine grit wet/dry paper will remove it. Tape off the fingerboard between the frets with masking tape then go at it.40 grit sandpaper will clean that right up.
That doesn’t look like scratches. I think the frets are just tarnished a bit from the guitar probably sitting out. I have seen that on guitars I have purchased. I probably would just play it if that is the only issue. Eventually if you play it a lot the tarnish will ware it self off.bought online from GC because they don't have it online, i tried to remove it by rubbing but theyre scratches how the hell does this even happen