Title says it all really. The pull cord for the bathroom light has broken, leaving just 1-2cm of cord hanging from the fitting. I've unscrewed the screws in the fitting to find it is absolutely stuck fast and can't separate it to replace the cord, I think because the previous owners painted the thing together.
I'm reluctant to put a hammer to it as there's a possibility there's asbestos in the ceiling.
Does anyone have any ideas?