How to Get in Touch with Wilkins?

I have been searching online for the hotline for delivery of Wilkins distilled water in Manila. The numbers I found are all NOT working. I can't believe that they have not made their hotline number more easily accessible. Or maybe my searching powers are not working right now?

In case you're wondering, I am considering other options for drinking water. The store that provides our water is alright but Jer and I have been having tummy problems and we cannot figure out the reason. Maybe it's the water?

Anyone knows the info I need? Help? :)