The shredding proved too much for our shredder. It has given up the ghost. It is no more. If it wasn't plugged in, it would be pushing up daisies. I has gone to meet its maker.
Mr Amazon will be delivering a replacement in the next day or so.
Meanwhile - a bit of a strop-a-gram seems to have woken up the builders. They have now confirmed our completion date as 29th August. Now the fun really begins.