I was married to my wife on Feb 24, 1988 in a Metro Manila City Hall. Formerly, we lived in together for about 3 1/2 years. My sister in law facilitated the marriage as she has connections inside the city hall at that time. We did not apply for a marriage license nor go through the normal process of applying for one. The marriage was solemnized that same day by a priest inside a corner of a restaurant. We did get a marriage contract from the NSO albeit without a marriage license number indicated in the contract. Is our marriage null and void without a marriage licence?