Yes you are, you haven't done what Kidgreen has suggested.
Just call the landlord to sort it.
Andy
Did you read my reply to him?
I was told by the landlord that there's no external stopcock. If I try that without cutting off the water supply it will flood the place. Do have a freeze kit but because the pipes are so close to the wall I would have to somehow improvise to be able to use it or chisel out behind the pipework. Thinking of just getting a plumber in but don't know what they would make of it either.