What maintenance costs? (ironic) Support:

"There is no fixed maintenance fee here. If you check the latest payout of everyday, you'll see that it is varying. This is because, the variance in mining luck, we are mining different amount everyday against the same hash power. Same is also mentioned under Note in www.cloudmining.website/calculator.php . Now, the electricity consumption found from our meter everyday is deducted after converting it to bitcoin cost. Both consumption and bitcoin value are variable here. You also need to consider that time to time we rent hash power from external sources to meet increasing demand, where the renting rate is a variable. Hence, it is difficult to provide you a straight out formula to calculate your fees. It is an average that you get."

When you use calculator - from 100 GHs you have more then 0.00120 but in practice you get less then 0.0006.

Support explanation:

"Please note that the calculator shows a theoretical amount, which will most likely be not equal to the practical payment amount. I would request you to check the note below the calculator..."

Really? 0.00120 ~ 0.0006 difference (For me thats 100% difference, but someone explain me that is only 50% - ok - i get it..)

WHERE IS MY 50% OF EARNINGS?

First get your facts straight. The difference in your example is 50%, not 100%.

(0.00120 - 0.00060)*100/0.00120 = 50 (You probably added an extra zero in the left of 0.00120 by mistake)

Have you ever done mining with hardware ? I think no. That is why you are asking these Qs.

What those mining calculators tell you is simply a theoretical return. In reality mining amount against same hash power varies every day. Even the cost of electricity varies everyday to run the same miner. If you want to make an average, you have to take a data set of at least 3 months. I am mining at cloudmining.website from almost beginning and from my findings I can tell you that the average is fine.

Moreover, as OP is saying time and again, this thread is for giveaway, not service discussion. So, if you want to continue this discussion, you'll better be posting in their service announcement thread as mentioned in the OP or in their forum as OP mentioned in the last post. Otherwise, all our conversation may get deleted again.