There's only 1 "SEVEN-YEAR" rule in the Civil Code

All provisions below are taken from the Civil Code of the Philippines. The Civil Code of the Philippines is the product of the codification of private law in the Philippines. It is the general law that governs family and property relations in the Philippines. It was enacted in 1950, and remains in force to date with some significant amendments. SOURCE: Civil Code of the Philippines. From Wikipedia, the free encyclopedia. https://en.wikipedia.org/wiki/Civil_Code_of_the_Philippines

The provision below is from the law on presumptive death.

Article 390. After an absence of seven years, it being unknown whether or not the absentee still lives, he shall be presumed dead for all purposes, except for those of succession.

The absentee shall not be presumed dead for the purpose of opening his succession till after an absence of ten years. If he disappeared after the age of seventy-five years, an absence of five years shall be sufficient in order that his succession may be opened. (The New Civil Code of the Philippines)