You´re right Joe . I misunderstood the word "asistir" which whilst it does mean "assist with" or "help" .. also means "to be present at " . I thought maybe they were offering the chance to help with the bullfight .
I tried to get tickets for the Cayetano fight on June 2nd .. so far they tell me there´s no chance .. So now I´m looking to buy tickets for June 5th . They´re not on sale yet .