I had a similar experience trying to order a piece of Rigol gear (don't remember which scope it was). I've got a good relationship with my equipment supplier, so I'm pretty certain they weren't trying to jerk me around. The first shipment was delayed, the second shipment showed up on time but had the wrong scope, and that's when I cancelled and ordered a Hameg/Rohde&Schwarz instead (at twice the price, but I'm pretty happy with it)
My supplier suggested that that's par for the course. People are pretty happy when they do eventually arrive, but the supply chain is pretty unreliable.