i bought a set of old konis which have never been fitted to a car but have been kept in a dry garage for a few years.i went to adjust them today as they are a bit soft and 1 of the adjusters was stuck.you could feel the shaft turn a good bit so its obviously stuck at the bottom,so i got a shifter and tried that but the end result is its still seized and now the bit you adjust it from has broken off.can i send it away to be repaired?if so where too?ta,lee