You started on Friday and we had some withdrawals delayed from one of exchanges on Friday (read more at https://bitcointalk.org/index.php?topic=448649.msg7833983#msg7833983), so most likely you didn't have 0.01 BTC exchanged at the time of Fri/Sat payout (exchanged means exchanged and withdrawn from exchange wallet to our wallet). We got these withdrawals somewhere on Fri/Sat night so you saw your 0.02531212 ready for payout on Sat morning (but it didn't mean that you had 0.01 or more at time of payout). You were then paid on Sat the full balance (and then next payout on Sun). This is how coin-switching pool with auto-exchanging works - we need to exchange coins and withdraw BTC from exchanges and time required to do this vary sometimes.