Conflicting Statements concerning Claim for Payment for Services

An advance decision was requested as to the propriety of paying a claim for services allegedly performed during a certain period. The claim was thought to be doubtful since services were being procured under a contract that covered this period. Statements by the claimant conflicted with those of the agency as to the timing and occurrence of events, and the claimant did not meet the burden of proving its account of events. The claimant was not entitled to payment since it performed services without obtaining an assignment of the contract and without the knowledge of the agency which reasonably believed that services were performed by the contractor.