Give the repaired component, date and affected position where known. Explain whether the present concern is continued wetting, visible growth or an unchanged stain. A repair invoice can describe work elsewhere in the room, so keep its location clear rather than assume every mark is connected. Include current and earlier photographs without opening finishes to investigate them yourself.
For ordinary cleanup after work, after-builders cleaning has another scope. It does not assess retained moisture or automatically treat mould and damaged materials.