Here's the step-by-step instruction to enable Globe Direct Carrier Billing Option from Google Play Store.
Step 1: Open Playstore Application with his/her mobile phone.
Step 2: Select Playstore menu to view "My account" options.
Step 3: Select "Enable Globe Telecom Billing".
Step 4: After step 3, kindly view those required fields to be filled up such as Name, Address, Postal Code, City and Province.
Note: Fill up all required information.
You can also refer to this link Direct Carrier Billing for Google Play Store for more info.
Hope this helps.