I love customer service issues
I deal with them just about every day at work. We have very good CS but I have seen the worst. In fact, I have taken classes on it.
At home I deal with companys with very good and very bad CS. Doesn't take much to figure out which is which. It starts with the phone systems that they set up. And trickles down from there.
I have to say that the bigger companies seem to have much better CS, in my opinion. And I always tell them how they rate and why they will be getting my business because of it.
As far as ebay sellers, I'm sure that there are unscrupulous buggers out there, and plenty of them.
I, for one, always lets a company know when they give me good service, (or bad service) and that they will get my future business.
Steve