Edit: Transactions appear pretty quick.
Edit2: No refund. Will I get it after it gets confirmed?
You must be referring to https://blockchain.info/tx/c22290d09dc89c2a43d2e24aa8667502c76d3a506590320c090564dd0e576361. Indeed, it is still not confirmed as of yet. Once it confirms, automatic refund is issued. Otherwise, you'd have to wait until it is cleared from the memory pool, in which time it would be as if you never sent any coins to begin with.
As a general comment, participating without fees is quite contradictory to how p50pot works, since the whole point is to get your payments confirmed as fast as possible. If anything, I would suggest increasing the fees if you want to increase the chance of having your move incorporated into the currently mined block.