[Originally posted here]

I am currently having trouble remembering GCash things so I am posting these for my own personal reference. I hope these information helps.

Extracted from: GCASH FAQs

HOW TO REGISTER

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Registration is a key process that activates the GCASH wallet in your Globe or TM cellphone. It is a one-time process, where you can choose to register through text or through the GCASH menu found in your SIM.

To register through text
Register your cellphone to GCASH by sending this text to 2882:

REG<space>4-digit PIN/mother’s maiden name/first name/last name/address

Remember! Make sure that your First Name and Last Name match the information that appears in any valid ID of yours. This is important for future GCASH transactions.

HOW TO SEND GCASH

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Person-to-person money transfer or P2P allows you to send GCASH to any Globe or TM subscriber at the speed of a text message, anytime, anywhere.

Just type AMOUNT<space>4-digit PIN and send to 2882+10 digit cellphone number of the recipient.

You can also go to the Globe Services menu in your SIM card, click on Postpaid or Prepaid Services>GCASH>Send GCASH

HOW TO CONVERT CASH INTO GCASH

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After you’ve registered, you will need to load your mobile wallet with GCASH. This is done via a cash-in transaction which is the process of converting your cash to GCASH at a Globe Center or at any accredited GCASH partner.

There are several ways that you can convert your cash to GCASH, and you can choose the option that is most convenient for you.

Go to a Globe Business Center
You can go to any Globe Center and request to do a GCASH cash-in transaction. You will need to fill up a GCASH Service Form, and present any valid ID to complete your transaction. Cashing in at a Globe Center is FREE!

Go to an accredited GCASH Partner
GCASH has over 1,800 accredited partners around the Philippines. These include SM Department & Metro Gaisano stores. Just like in a Globe Center, you will need to fill up a GCASH Service Form and present a valid ID to complete your GCASH cash-in transaction. You may be charged a transaction fee, which may vary per partner.

If you’d like to find the GCASH outlet nearest you, you can also text FIND GCASH and send to 7000.

Go to a Bancnet ATM
You can also convert the cash in your Bancnet account to GCASH. To convert, you just need to go to any Bancnet ATM, select the option to do a fund transfer to Asia United Bank/GCASH. You will then be asked to key-in the 11-digit number of the mobile number you wish to load. After the transaction is completed, you will receive a text confirmation.
Remember! Bancnet currently only accepts cash to GCASH conversions. You will be charged P25.00/transaction.

Go to the BPI Express Mobile menu on your SIM
You can also reload your GCASH wallet through the BPI Express Mobile menu on your SIM.

To load your GCASH wallet directly from your account, go to the BPI Express Mobile menu and choose GCASH Transfer then choose the Bank to GCASH option. You will be asked to enter your BPI Express Mobile 6-digit PIN and indicate the amount of cash you want to transfer to your GCASH wallet. For more information on how to use BPI Express Mobile, you can go here.