Why would the rear wheels buckle when the majority of the weight is on the front wheels?
Unless, of course, you were reversing at high speed away from a plague of flies and hit some speed bumps...
Quite so Moanio.
I'd normally be quite sympathetic, and have offered to inspect, try to help, and offer some kinds of varying solutions, but as he cannot conduct himself in a normal, decent and well mannered manner towards me, stuff him.
£551 too ey? Just over a quarter of a flea ridden rancid rug that! What a tosspot.
Saw him coming ey?