I have a question about payment. I have started mining electroneum yesterday and when first block was found (with luck 160%) I received 75etn as reward, my hashrate is 10kh/s, pool's hashrate 1Mh/s so that is expected. I waited for next block to be mined, but after about 6 hours I gave up. Block was finally found about 3 hours later. I get zero reward. I think that I should received at least some coins but I didn't get anything when block was found. Why I didn't get any coins?
You shouldn't - pool is PPLNS. You can read what it means on the net, you get rewards for last shares. This very good to avoid pool jumpers. You must stay all the time, until block is found and you have rewarded.