Yes, just needed to see exactly what stake you were awarded. Ok, so you rec'd a stake yesterday for the $0.50 at 8pm and you didn't think you would get it....Obv didn't play it if you didn't realize.
I would suggest you PM the staker and explain the situation. Ask him what he would like you to do, play it today or ship it back. It is up to him.
Communication is the number 1 thing here, let him know what is going on and I'm sure the situation will work out fine.
In future if you have applied for a stake, pop on and off the site around the time the stake is to be run, just in case you are awarded the stake, don't assume you won't get it

.
Let us know if you need further help.