One of the reasons the ship was banned from Australia was crew pay.
International Transport Workers' Federation inspector Grahame McLaren said the Filipino crew were this week paid their June and July wages although August's pay was still outstanding.
Mr McLaren said the ship's owners were still looking for another charterer. He was unsure why the vessel would be berthed at the port for so long.
"It must be costing them a lot of money to sit alongside the wharf there."
Usually a ship awaiting its next job would anchor at sea or head slowly in the direction of where the crew thought the next cargo would come from, he said.
It is now scheduled to leave at 11pm on Sunday.
Vega Reederei, the German-based company that owns the Vega Auriga, did not respond to questions.
Vega Auriga
*Owner: Hamburg-based Vega-Reederei GmbH & Co.
*Flag: Liberia.
*Gross tonnage: 9981 tonnes.
*Built: 2006.