Good day bintulan!
To link your GLOBE number to the Play Store, follow these basic instructions:
Open Play Store app --> Browse any 'paid' apps --> Select on Carrier Billing --> Provide you mobile number.
VOILA! You can now purchase your favorite apps and in-game items at the Play Store. Please do note that there is an additional 12% for VAT on top of the price of your items. Make sure you have enough balance otherwise your transaction will fail.
It wont work sir his no asking about my mobile number the apps i click is 43pesos to purchase i have 60 balance load