Help! How do I get this green stuff off this yellow mac?!

[ThisMustBeMyDream]

DS has come home from nursery with a ruined coat! I'd like to try and save it as it's only 6 weeks old and purchased for spring as it is nice and lightweight.
Nursery don't know what it is or what happened. I strongly suspect dry wipe markers.
Tried hairspray and babywipes, sticky stuff remover, astonish paste. Nothing has shifted so much as a tint of green off it.
Any ideas?

A bit of nail polish remover on a cotton bud, tried on the least visible but first.

Nail polish gave some fade, but literally just faded it. 😭 Still looks as bad.

Alcohol. Meths. Looks like highlighter ink.

Try making a paste out of bicarbonate of soda and water and scrub it. I've managed to get bleach stains out of a melamine worktop doing this, which I thought was a lost cause, it was amazing. Good luck!

If you can’t shift it, I would just live with it. It’s still a perfectly serviceable coat, and it would be really wasteful to replace.

Never send a child to nursery in anything remotely nice. I've had to wash dd's nursery coat three times this week as she loves the mud kitchen. Her nursery clothes are all covered in paint too.

I second the bicarbonate of soda trick, this has worked on literally every stain I’ve tried it on.

Failing that, get yourself a fabric patch and cover it. Good luck!

You could try colouring in the whole pocket!