Kuwait Court of Cassation principle number 2080

Delivery of what is not due. Its sufficiency to impose on the recipient an obligation to return it. The basis thereof. Unjust enrichment at another’s expense by what he received. The reason why it was not due is immaterial. - An action to recover what was paid without legal entitlement. It is time-barred upon the expiry of 3 years from the day the plaintiff learns of his right to recovery or upon the expiry of 15 years from the day that right arises, whichever period expires first.