Upstairs' shower is leaking through our ceiling...
The people living there are renting and have contacted their landlord. Our lease states that the freeholder/building insurance covers burst pipes but at the moment we have no idea what's causing the problem.
Hopefully the leaseholder upstairs gets back to the tenants soon, I've asked them not to use the shower until then (and offered the use of ours) but I don't know how long that can last. If it's not sorted by Monday evening I'll contact the building management company and see what they say.
Not really sure what the procedure is here.