Hello.
I bought lottery tickets and my base reward is ok but i don't receive the bonus. For example if i have 25% bonus i receive only the base not 0.25*base reward+ base reward.
Which is the reason?
If you mean the bonus on the free-rolls tab it says this:
17.7412% achieved towards the next +0.00000030 BTC bonus!
That means you have to get to 100% to have the bonus activated.