What guarantees can you give to cloud mining customers?
We guarantee 100% server uptime. Even if our servers are down, we will make sure you get paid correctly for your hashrate.
However, mining profit depends on the bitcoin price and mining difficulty. You can see the historical Bitcoin mining difficulty here: https://bitcoinwisdom.com/bitcoin/difficulty and here: https://www.blockchain.com/charts/difficulty
Bitcoin price and mining difficulty are the risks involved with all cloud mining providers.