Here are the highlights from this article http://www.rt.com/news/monsanto-brazil-seed-soy-908/

Five million Brazilian farmers are locked in a lawsuit with US-based biotech giant Monsanto, suing for as much as 6.2 billion euros. They say that the genetic-engineering company has been collecting royalties on crops it unfairly claims as its own.

Because the engineered seed is patented, Monsanto not only charges an initial royalty on the sale of the crop produced, but a continuing 2 per cent royalty on every subsequent crop, even if the farmer is using a later generation of seed.

The Brazilian court has ruled in favor of the Brazilian farmers, saying Monsanto owes them at least US$2 billion paid since 2004. Monsanto, however, has appealed the decision and the case is ongoing.

Monsanto is also the world’s largest manufacturer of synthetic bovine growth hormone, injected into cows in order to stimulate greater milk production. The widespread pressure by the company to use the chemical and the subsequent measures taken by Monsanto to suppress information regarding the potential health risks sparked uproar among American farmers.

When dairy producers that did not use Monsanto’s products began labeling their products as “Hormone Free” or “Organic”, Monsanto slapped them with a lawsuit as recently as 2008, claiming the labels amounted to negative advertising against hormone-produced milk.

http://current.com/technology/93768193_monsanto-in-big-trouble-in-brazil.htm

This is the case.
A judge suspended royalty payments to Monsanto in Brazil for GM soy seeds.

"NOTE: Monsanto could be ordered to pay back an estimated 6.2 billion Euros to Brazil's 5 million soya farmers. A judge in the Brazilian state of Rio Grande do Sul has already ordered the suspension of the payment of royalties on Monsanto's GM seeds this year. And the verdict envisages backdating the reimbursement of royalties to the 2003/2004 season. If Monsanto ignores this judgement, the firm will incur a daily penalty of 400,000 Euros. Monsanto will appeal but an appeal brings the risk that this decision by a state tribunal could be extended nationwide."