Have you ever logged into a sports account and even though you knew that nothing was available, there was somehow a considerable balance left? I remember once I logged into my WWTS account( an account I thought had a zero balance and I hadnt logged in for 6 months) with a surprise balance of like 700 bucks and change. I could of sworn I lost everything but after researching , came to find out I miscalculated an over/under loss which should have been a win. So this money was just sittin' there for like 6 months without me knowing. Ever since then, I always periodically check all of my accounts even if they are supposedly zeroed out.