Have no idea what's blocking it. but it's well and truly blocked. and it's spreading.
the sink's blocked too now.
I went to the supermarket to buy some doubtless environmentally terroristic sink unblocker but they all said not to put down the loo (and, at the time, the sink wasn't blocked). so I bought a plunger and, if anything, it's just making things worse. wtf am I meant to do?