The site of miningonebitcoin.com is scammer, cheater. I join this site about 2 weeks ago, the first two times profit payment was fine, but after that always pending profit, I ask them to play fair by paying me the profit but they always make up any reason by saying always log in to the site with different IP so they don't want to pay the profit to me. I believe they already plan to cheat the clients from the beginning.
The proof is here: https://youtu.be/Tqh9OuKJfwE
btw, I can forward you the email from them.