What pool have you been mining to? Is there a minimum payout threshold that you have not yet reached? 26mh only makes 0.169 ETH per month at current difficulty so you might just not have hit the minimum for a payout.
Not sure. Goes to myetherwallet
There is probably no mistake : your pool need you reach a minimum amount of Ethereum before withdraw this amount to your wallet.
Usually, your pool interface show you the progress mining, even you catch this minimum amount.
Why did you not answer for the pool name ?