What am I doing wrong, mining coins, but wallet balance is zero

[caloriecoin]

Hello Mining Experts,

I mined ByteCoin for days using wallet, it kept on showing 30000-100000 shares then when wallet synced the balance showed Zero.

Then I mined digital note using wallet, it synced after 3 days and showed wallet balance as zero.

What am I doing wrong, or are these BCN/DCN wallet mining scam?

Thanks in advance for your help.