PharmEasy — Wrong medicine prescribed as substitute

I placed an order for my father's medicine. Got a call from soo called the fake doctor for confirming an order. He informed the ordered medicine is not available hence we will replace it with a substitute that has the same composition. I always trusted PharmEasy and had more than 100 orders placed however I just went to check the composition and use of the replaced medicine and it was completely for different use. PharmEasy dealing in medicine should be a little more responsible as its dealing with people's life. What if I would have not checked and something wrong would have happened to my father. order num- M47264974