Probably a scam. I mined on pool.sambacoin.info and after some site maintenance I lost all my coins.
I'll update if that changes, but for now a lot of coins are gone.
We have a trouble with the pool yesterday (I spend all my sunday with mpos channel support to solve). You
have mined 70400 sambas until then, you is our best miner at this time! congratulations! I'll transfer all these sambas for your wallet *WITHOUT* the 2% fee to compensate the pool outage, ok?
Please, send me a direct message saying you SMB address, I'll transfer all them ok?