Help! Where to buy Merida bikes near Muntinlupa?

Good day po!

Newbie here that needs help.. Im from muntinlupa city and I was planning to buy my first MTB and wala po ko mahanap na shop na meron dito nung gusto kong models... Need some suggestions or offer if meron po... These are the models that i was eyeing to buy...

Merida Big Nine 70 matte black/red small frame

Or

Merida Big Seven 70 matte black/red small frame

Thanks and God Bless!