There is nothing wrong in getting double, exact, half or quarter of what calculator is showing you. I had around 1 Ghs hardware in 2013, which was a good amount then. I mined zero BTC in consecutive days and got minuscule amount for week. This is normal due to mining luck.
You are talking about solo mining.. This is different.. Don't you think?
OP has stated here and in the giveaway thread that support is provided from their forum. I can see people are asking Qs over there and getting answer. So, instead of following the process, if you keep screaming over here, chances are low that you'll get any proper answer in future too...
Yes, I did it with full awareness. This is the main topic. People should know what is happening.
There is no pre-defined formula of correct/incorrect payment. If you think, the payment close to mining calculator is correct and far from mining calculator is incorrect, then you are incorrect indeed. Another user mentioned a quote from their forum which clearly explains the maintenance fee. There is no point in being lunatic to claim that there wont be any maintenance fee to ensure an ending like PB mining. Consistent and steady return is what we look for...
This service was working
"VERY" smooth and stable from first day of the operation till 18th of December - when payments fell by half.