Test Centers - Brazil

Anyone here knows about Rio de Janeiro Venue? I didnt find it to schedule in CFAI. I remember that it will be host in Rio de Janeiro, but… not anymore?
I saw that the CFAI offered a venue in Sao Paulo with a ‘to be confirmed’ status. Then it means that if I schedule that venue it may be needed to be reschedule, doesnt it? Could CFAI offer only confirmed venue to get easer our choices?
The other doubt is about the time lenght: now the test lasts 5:30 h. Anyone knows if there is some interruption in the middle? Between the written and MCQ test?