You can now top-up your mobiphone SIM card online at the tip of your finger using the recently launched online pay services by Mobiphone in Vietnam. The company is also giving 3% of your top-up card and the recharge is immediately done.
To Recharge Your Mobiphone Online :
Visit Mobiphone website and click the Online pay.
Insert your mobile phone number, you can use the +84, but I won't use it anyways.
Choose your card, this can be your Amex, JCB, VISA or Mastercard. You can also use your normal Vietnam debit card you use for online transaction
Go ahead and click "Thanh Toan" and you will be presented with where you can insert your card details.
Insert the click and purchase.
Your mobiphone will be immediately credited and you are good to go....