I was selling 18 tickets, I sold 15 of them for 1.5m so 100k each. I tried to sell my 3 leftover tickets and someone traded me, I accepted expecting them to pay 200k. (100k off because it was only three) Immediately after opening the trade, I found him clicking the confirm button about 5 seconds later. I asked him if it was 200k, he responded yes and I took a screenshot.
Proof:
http://imgur.com/a/Ovk1N
Name:
jpanther_2