Hour and half late leaving Melbourne Wednesday 18th July 10 minutes form landing we were told that there was no fuel truck at Ballina we would be diverting to Gold Coast to refuel the we would be on our way back to Ballina. When we landed the announcement was undo your seat belts use your phones if you wish. 10 minutes later we were told we must leave the plane make our way to the far corner of the terminal where we would be bussed back to Ballina. No reason no explanation, another45 minutes for the bus, we later found out from people waiting at Ballina that the fuel truck was there, plane landed empty! Picked up the passengers and went on to Melbourne. Instead of arriving home at 7.30 it was 11.30pm. What reason were we dumped at gold coast? Still trying to find out.