Well last night backed outta my driveway and wasnt paying much attention and i scratched the mailbox
HUGE SCRATCH

I went to supercheap auto today, bought some scratch remover and rubbed it onto the scratches.
Did a bit but not much. I asked for some touch up paint but they didn't have my paint code.
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Any tips in how to fill in the scratches? and how to paint it back up? I heard a toothpick is a good method.

pics below. The bottom scratch is probably the deepest.