One employee told this newspaper that he was hired in March with around 200 other workers on six month contracts, but has now been let go.
"In April, the company said it wanted 200 more workers. They went through a week of training, worked for two weeks and were let go. These would have been people taken in on two to six-week contracts.
"Four weeks ago, another 50 were let go, and over the last few days, another 20 or 30.
"It's a disgrace how workers were treated. If they showed up at 10.30pm for the night shift, they were being told to go home at 11pm, that their jobs were gone," he said.