That is great news. As i told you could be rebooked into another PE flight or go full J. The problem is that now there are such a few choices for premium cabins into GRU that sometimes just wont work into your schedule.
Last year i had a SCL LIM GRU RT ticket and i just was not able to get any flight from LIM to SCL that could match the dates and time that i need it to be back. So they just put me into row 2 (i dont like row one), block the middle seat and give me 250 usd in a voucher.