Your comments
It doesn't matter how many shares or how long you've been mining. If a block is not found there is nothing to be put in your balance. Whether you mine for 1000 hours and have a hundred billion shares you would still not have a balance unless a block is found. The LTC pool last found a block 3 days ago.
Customer support service by UserEcho
You can see how many blocks were found and when for yourself from the site. Click on the "Blocks" tab right next to "Getting Started"