In reply to Will Hunt:
When my mate forgot to de-extend my clipstick while lowering off and totally spannered one of the poles, I called Beta to ask if I could buy a spare. They told me to just come by their office in Sheffield and were kind enough to replace the broken part, totally free of charge, and while they were at it tightened up one of the clamps.
They might not necessarily want every man and his dog turning up demanding free repairs/spares, but it might be worth a punt if Sheffield is convenient for you (plus I think it's a good story in terms of showing how sound they are as a company).