Learn Texas Holdem

Question: I had an issue in a pot-limit tournament on ***** ***** that I would appreciate your opinion on. My chip stack was approximately 3 ½ times the big blind. There were 6 people at my table 4 people joined while a hand was in progress. I was the big blind during this hand, was raised and folded. The very next hand the button moved to where a player had just joined and I was in the big blind again. I was raised and folded. The next hand I was the small blind which put me all in. I lost and finished 24th when 20th place paid. I took the issue up with their customer support and requested a refund. They denied my request saying that although I was at a disadvantage this time that there would be times when I would have an advantage. I do not believe this to be a valid argument. I would like to know if you agree or disagree with me. If you agree, do you have any suggestions on any recourse I might have.

Thanks in advance Don