With Wing, topping up is as easy as dialing a few digits on your phone
TO TOP-UP ON YOUR MOBILE PHONE
STEP 1 : Dial *989#
STEP 2 : Enter your Wing account number
STEP 3 : Press 3 to choose WING TINH CARD
STEP 4 : Enter the mobile number you want to top-up
STEP 5 : Choose the amount you want to top-up
STEP 6 : Enter your PIN code
You can also top-up other mobile phone numbers.
The receiver of the top-up will receive a notification by SMS.
TO TOP-UP VIA ANY OF THE WING RETAIL OUTLETS
STEP 1 : Visit any of these outlets
STEP 2 : Tell the dealer the mobile network and amount you want to top-up
STEP 3 : You will receive a receipt with a 14-digit code
STEP 4 : Use this code to top-up your phone.
More than 8,000 retail outlets are available in phone shops, mini marts, retailers and hotels.