How to link AUB Pag-ibig card to Hello Money app

My Pag-IBIG Loyalty Card Plus is AUB. I tried to register an existing account kasi di ba valid bank account sa AUB ung Pag-ibig ko? But the app keeps on blocking me, sabi para lang daw siya sa accounts opened in AUB branches. Pero ung other option lang is to open a new Hello Money account. Iba un di ba? Completely diff bank account siya?

I just want to open my Pag-ibig AUB account in the Hello Money app so that I can monitor my MP2 fund pag nag-mature na. Meron na ba nakagawa nun? Or di talaga siya pwede? Thru ATM lang?