The package finally arrived today, complete with a label from the courier company dated the 28th for next day delivery. 
The order was well packed and I have no complaints about the metal. I have been ordering from MM for several years; delivery has varied from a couple of days to several weeks. What threw me this time was being told delivery would be a couple of days, and then over a week later being unable to get through on the 'phone despite multiple tries over several days.
I have already used my home made bending rolls to make the front wheels for my traction engines:

However, one of them is imitating a newt after welding, and after some perfunctory attempts to sort it out with a hammer it seems easier to make another one. Hence the order for the metal.
Andrew