A few questions.
If I understand correctly, you use your own power supplies?
Customer pays return shipping? (unless this is just a setup to steal miners)
Anything to show that you are trustworthy?
Is the mining reward sent to addresses I control, if so, how do you control the service fee?
We have a power source ~220V. And yes we can help you to buy and setup power supplies if it's a problem for you.
We wil pay for return shipping after 6 month deal is finished if you want to have them back
(Thank you for this mention. Initial post has been updated).
We are ready to show anything you want. Any acceptable guarantees we will provide.
You pay the service fee every two weeks or so. We can not control your earnings, we just control your hardware, so we expect a trustworthy relationship.
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