Thanks Nicola,
It is a sad day for such companies if they respond to legal threats only and not to customer grievance. Such an approach is not good for their brand as the image of quality and service will quickly become tarnished.
Frankly I feel I have wasted enough time on this already - more that the value of the item justifies.
My motivation in pursuing the matter with Rotary was as much to let them hear of a customers experience and understand their customers sense of grievance, as it was to get the defects rectified. Their response was so poor that I fear Rotary must actually be disinterested in customer satisfaction. I have seen no evidence that my complaint has risen upward through their organisation so it might be that they also have a cultural problem relating to such issues.
I once had a much lesser problem with piece of Japanese fishing tackle which i returned for repair (not under warranty). They identified the problem as being 'abnormal' and repaired it free of charge, returning the item almost the next day.
Needless to say I have great confidence in that brand, have bough numerous other items from their range and consistently recommend their products to others. What a difference between Daiwa and Rotary!