General Electric Capital Corp., one of the world’s top lenders, learned about one of the world’s largest Ponzi schemes long before it was exposed but kept silent to get back more than $48 million in outstanding debt, according to a lawsuit filed in one of South Florida’s biggest bankruptcy cases.

The amended complaint filed Dec. 21 in the Palm Beach Finance Partners L.P. bankruptcy case contains a damaging letter and quotes from testimony tying GE Capital to Tom Petters, currently serving a 50-year prison sentence for perpetrating a $3.65 billion Ponzi scheme.