The thing is you everyone should learn this. No poker site have access to the their network accept asking for Hand Histories. How idiotic to ask such a question. Mansion, Titan, Bet365 (IPoker) are in the same network (like you play star craft or counter strike etc.) they cannot control the dealt cards. You play against the same players whether you are in Mansion or Titan or Bet365 etc.
Its easy to check this if you don't believe me. Have 2 separate computers running Mansion and Titan and open the same table. How come the dealt cards are the same ? WoW. Because they are in the same network controlled centrally.
Do you really think that Poker Rooms unite against the customers and try to set the cards in a way so players can create huge pots and they can take huge rakes ? No, this is not true. Yes there are RNGs which in the past had leaks but things are better now and its equal for everyone. Try to learn the game or you're not getting anywhere by whining.
Actually, second thought, when I was at high school our Psychology teacher told us, that when you are angry just whine absurdly and it really feels good after 1 minute and helps you to focus
Edit: They have accesss for IP, address and the other staff for security reasons but have no control on the cards.