Vintage Traders Australia will pursue legal action against a wine company which has yet to pay its $900,000 bill.
VTA chairman Phillip Englefield said the company was not the only one yet to pay up.
"So far we’ve recovered a bit more than 70 per cent of all monies owed to Vintage Traders (from winegrape sales)," Mr Englefield said.
"We would like to have some arrangements with these people, but at this stage we’re exercising our legal rights."
VTA was set up to market surplus and uncontracted winegrapes in 2006 after up to 200,000 tonnes of grapes were left to rot nationwide that year.
Mr Englefield said while it was difficult for the organisation to market uncontracted and excess fruit, but it would be "substantially more difficult for individual growers".
As VTA came to arrangements with other companies, Mr Englefield expected to have 85 per cent of monies owed to VTA paid up soon.
"It’s disappointing for growers, it impacts heavily on their cashflows in a difficult industry to be in, both climate wise and with viability," Mr Englefield said.
"This is making life even harder."