Unlucky Gill.
I, like you decided that buying a shed was a good solution when I wanted to get my workshop ambitions realised a bit quicker. I'd rung and ordered one, and checked up a couple of days prior. "Sorry mate - running 3 weeks behind. Hope thats not a problem". "Err, yes actually it is" I said, "I've been working flat out to get the patio ready on time, and now you tell me you are running behind - I specifically asked, and it was agreed delivery would be this weekend as I've got people coming to help." - "Sorry mate" he said. "Thats OK", said I. "I cancel the order".... "but" he said, before the line went dead. Anyway, I built it myself in the less than 3 weeks, to a higher standard. Although looking at the photos you took, it looks like you are buying quite a well constructed building, rather than just a "shed".
Hope they get it sorted quickly.
Adam