Route one connection to one website(IP) through one Provider

Hi all,

I have 2 providers (load balancing) and sometimes when I want to check my traffic with one provider I can’t enter on that website, because that providers allows connection only form it’s own network but the connections goes through the other Provider (denied).
Please help me make a rule so I would always connect to that website (IP) using the Provider (route) I need.

Thank you