I just charged my M3 for the first time yesterday and the experience was great! I hit a 477 mi/hr rate and put 75 miles on in 10 minutes. However, when I received the bill shortly after, it charged me at Tier 2 which is twice the cost of Tier 1. To quality for Tier 1 you should have less than 60 kW (which I did - only had about 60 miles left on battery) and not be sharing a charger as another Tesla (I had an empty spot on both sides of my car,) so I'm confused as to why I got charged Tier 2. I sent an email into support yesterday and haven't heard anything back. Has anyone else experienced this?