In my holiday property the above apartment had a leak which came through my ceiling - can you suggest a stain remover and any fillers
Assuming the issue is a water stained plasterboard ceiling, it has had time to dry out, it is clean, dry, sound and prepared as detailed in the technical data sheet we can recommend Zinsser B-I-N followed by Zinsser Perma-White Interior.
This can be mixed to many RAL and BS colours in a matt or satin finish.