The most recent one: EA. I had disliked them and their practices for quite some time now, but there was a game on sale that I found interesting enough to purchase .. it was like 2 Euro or whatever, so no big loss. AFTER the download they wanted me to sign an electronic agreement to basically harvest all of my data and requiring me to be permanently online in a singleplayer offline game at all times so they could monitor me, and if I didn't agree I wouldn't be able to play the game. No refund. I uninstalled it and will never purchase anything from them again - that was the last straw, the last ever chance I was willing to give them. And no there was no warning of any kind before the purchase - they deliberately waited until after they had my money to "ask" for that bullshit.