On July 28, 2017, Malden Cleaning Services signed a one-year contract with Bernard Crystal Palace to perform cleaning services for the customer at a rate of $1,800 per month beginning September 1. During 2017, Malden Cleaning Services provided the services required from September 1 through December 31 and received $10,800 in cash from Bernard Crystal Palace. What amount, if any, was reported as accounts receivable from Bernard Crystal Palace by Malden Cleaning Services in its GAAP balance sheet at December 31, 2017?