Zrenjanin is the biggest city in the Banat and the centre of a flat, spread-out region, so people come in from the surrounding villages rather than the other way round. The OktagonBet counter is on Žarka Zrenjanina, the street that shares the city's name.
It runs 09:00 to 23:00. Every venue is 18+, and staff will ask for identification whenever there is any doubt.