rust mark on enamel bath

[meysey]

my DS dropped some metal thing in the bath (enamel roll top) and there is now a brown rust-type stain... any ideas on how to get rid of it without trashing the enamel?

You can use rust converter followed by enamel paint.

There is a company who sort out scratches and resurface baths but I can't for the life of me remember their name. I just did a quick google search and came up with this company though: www.thebathbusiness.co.uk/