We had some from them last year for Oswestry. It came from a Roman Catholic Girls school
The guy named on this thread called me a few weeks ago to said they were doing a job down south and had some more going spare, but we just dont need any more.
Our experience was that you need to collect the stuff and FAST, we had 48 hours notice which meant getting a 40' trailer to go pick it up. It was also VERY heavy. even after cutting 3mx3m sections it took 8 people to lift those sections using lorry straps..
Neil