Where, pursuant to section 50, a court has made a maintenance order, a variation order or an interim order and directed that payments under the order be made to the District Court clerk, in any proceedings under this Act or under the Enforcement of Court Orders Acts 1926 to 2009, a certificate purporting to be signed by the relevant District Court clerk as to the amount of monies outstanding on foot of such order shall, until the contrary is shown, be evidence of the matters stated in the certificate.