REVENUE MEMORANDUM CIRCULAR NO. 4-2012 issued on January 18, 2012 notifies the loss of one (1) set of unused BIR Form No. 2524 – Revenue Official Receipt with Serial No. ROR201100127071.                                                                                                                                            Said form, which was reported lost by Mr. Benjamin C. Ranan, Jr. of Revenue District Office No. 112, has been cancelled and all official transactions involving the use thereof are considered invalid.