Who has been mining any cryptocurrency and have succeded in withdrawing his money, cause I have minied so many cryptocurrency for past years and presently now, but has not have access in withdrawal.
Cloud mining are scam as NeuroticFish posted already. Either free cloud mining to lure you to pay for premium and have better mining reward, but those are not real bitcoin, they are just numbers represented on the cloud mining sites. Which means you will not be able to withdraw as they are in control and they are not legit. As the free part of cloud mining is even having high reward compared to what bitcoin mining is today, you should know that they are scammers that only just want you to go for premium version inorder to scam you.
I get it cause their was one of the mining i was ask to pay certain amount before I could withdraw. But later on I find out that their was no way again to login.