SHYTOT:
All mine are in cloud cuckoo land compared to yours Stanley
you must use a lot more than us or your good at haggling
TBF, I just tell them the score, maximum credit terms, best price & invoicing that is spot on to what is agreed 
In return, we will shift a fair bit, and you won`t get tickled come payment day 
Doesnt always work, but youve got to play them at their own game & be prepared to shuffle the pack weekly 
S.M.