Horizontal Price Fixing is a two (or more) party collusion. EG: the Sharp, LG, CPT case I referenced earlier.
But that's only the tip of what price fixing is. If you want to remain ignorant of the scope of the law, that's fine, but it only further weakens any argument you may make.
Vertical Price Fixing is what a manufacturer does when they attempt to manipulate the marketplace unfairly to their advantage by trying to limit availability of purchase, discounts, price-setting, etc.
If you fail to see, understand, research or otherwise approach the issue with a grasp of the subject, then you're either just trolling, or you have your head fully stuck in the sands of denial, ostrich-style.