Fans will now have to wait until later in 2015 for the opportunity to by general tickets when they are released.
With few artists yet confirmed other than Katy Perry, John Legend and System of Down, fans that purchased the card will have first choice of days when the full schedule is confirmed.
Dates for the shows in 2015 are September 18, 19, 20, 24, 25, 26 and 27.
The concerts take place in the Olympic Park.
Prior to the Rio shows, Rock in Rio will take place in Las Vegas in May 2014. Artists confirmed include Taylor Swift, Ed Sheeran, Bruno Mars, Metallica, Linkin Park, No Doubt, Deftones, Joss Stone and John Legend.