If you are not comfortable with our lack of full transparency, please don't buy a contract.
Why do you refuse to share this information with potential customers? This is vital information required to assess the profitability of the service. Potential customers have no way of knowing whether to expect 1 Satoshi or 1000 Satoshis per Gh/s.
I'm not comfortable with that at all and most certainly will not be buying any contracts from you.