What are the main evidentiary elements that support a judicial decision obligating a party to return capital in a contractual dispute?

A judicial decision obligating the return of capital can be based on: 1. Establishment of the contractual relationship by virtue of a valid and signed contract. 2. Submission of evidence proving the delivery of capital (e.g., receipts). 3. Acknowledgment by the recipient party of the capital's receipt or its equivalent. 4. Failure of the recipient party to provide a substantive defense to the claim or to demonstrate diligence in realizing entitlements or profits, especially after a sufficient period has elapsed.