records or other documents relating to any debt owed by the landfill site operator to the customer or any enforceable security held by them in relation to the customer
cofnodion neu ddogfennau eraill sy’n ymwneud ag unrhyw ddyled sy’n ddyledus gan weithredwr y safle tirlenwi i'r cwsmer neu unrhyw sicrhad gorfodadwy sy’n cael ei ddal ganddo mewn perthynas â'r cwsmer