I played my first match last night around 1 or 2 a.m. I had won about 9 or 10 matches/chests. When I resumed playing this morning I was right where I left off. I won a few more. But then around 10 a.m. it reset and I was back to chest #1. I had heard we have 18 hours to make the 20 chests, but I only seemed to get 8 or 9.