I tried contacting the owner/operator of the site - CoinLearn - but haven't heard anything back.
Heard back this morning. CoinLearn promises a payout "soon".
The site earlier today said it paid me. Some hours later still nothing showing up on the blockchain.
Didn't include a large enough tx fee perhaps?
Anyone else seeing a pay out?
I don't use it, but this is probably a direct result of the conversation between myself and "vola" on DP here: https://forums.digitalpoint.com/threads/bitcoin-crypto-currency.2699052 (starting from my comment near the middle of page 2).
S/he is either a rabid supporter of the site or runs it, at a guess, and is desperate to prove that it's worthwhile and pays. As I said in that thread, I really don't care (I don't use it - not my style of earning at all), but vola gets abusive as soon as the site's reliability is questioned.
Draw what conclusions you may. Extra info is always useful.