User Review( votes)
When you are paying one-time payment, you are receiving hashpower, which is not limited in time. You will also pay an everyday maintenance fee. This cost is paid in USD, and deducted automatically from the mined volume of BTC, using current exchange rate BTC/USD. Thus, everyday cost for the maintenance in BTC depends on the exchange rate BTC/USD. If you don’t have enough balance during ten days to cover your daily maintenance fee, the mining contract and service will be canceled.
This is what it says on Aliencloud.xyz website:
Now we provide lifetime and annual contracts for mining 9 crypto-currencies. Crypto currency is credited to your account daily.
ETH and BTC.
Their support email no is : [email protected]
Their telephone no is none.
Their office address is none.