I dont give a crap about offending people necessarily, but when you tick people off you're less likely to get what you want or need from them so its in your best interest to be professional when dealing with issues of this nature. You know the old saying "Youll catch more flys with honey than...
Rob claims to have refunded you twice, once for each battery Are you saying HK never issued either refund?
I've been buying stuff from HK for the better part of 15 years and I've never had any issues with them. The one or two times I did have issues I had no problems getting my issues resolved...