You can pay via BDO online.
You have to enroll Company / Biller Name first Thru Enrollment Services > Company/Biller > Enroll
FOR Globe Broadband: INNOVE/GLOBE LANDLINE/TATTOO BROADBAND
AND FOR Globe Postpaid: GLOBE POSTPAID MOBILE
once enrolled, you may now pay thru Financial Services > Bills Payment > Pay Bills and select appropriate biller
you may also transact payment over ATM using the following
• Bancnet (all bank member)
• Banco de Oro
• Megalink (all bank member)
Yes I believe it is possible as long as you have a sufficient balance in the account associated with your debit card.