I purchased a ticket from US for a FC Barcelona ga...

I purchased a ticket from US for a FC Barcelona game over StubHub last week. At first, the ticket was a confirmation of purchase instead of a ticket to the game. Then a wrong event was being displayed on my account when they tried to fix it. Now the event is still displayed at "Barcelona Vs Manchester United" instead of "Barcelona Vs Real Sociedad". After some struggles, StubHub sent me the ticket and I found that the seating section is not the same as what I purchased. They kept saying that they tried to fix it. The ticket is no longer what I have purchased. Sometimes they say they are trying to help and sometimes they say the ticket is correct which I know it is not true.