Repair to chipped bath surface

Hi all,

I previously had my enamel bath resurfaced in 2023 and I was very happy with the result.  Unfortunately, the surface has now chipped in a couple of places and I am trying to find someone who can repair these two small areas without resurfacing the whole bath.  I can't get hold of the person who originally resurfaced the bath, so does anyone know of a company who can do this?  Many thanks Kumari