A circular issued in December by the Ministry of Information and Communications restricts the maximum top-up bonus to 20% across all prepaid accounts, effective from March 1 this year.
Previously, the promotion ceiling was 50% of the top-up value.
|A user in Vietnam tops up their mobile account balance through a digital wallet service. Photo: Tuoi Tre
Advertisements and social media campaigns orchestrated by top Vietnamese network operators had been calling February’s promotions “the last chance” for mobile users to get 50% more for what they pay before the circular goes into effect.
“I’ve already bought six top-up cards with the face value of VND500,000 [US$22] each this morning. It’s my last chance to enjoy a 50% bonus, so it pays to spend a little more than usual,” said Hoang Tung, a resident in Ho Chi Minh City.
Others with a bank account capable of making online transactions opted to top up their balance via the carriers’ online payment gateways, causing widespread network jams.
The online edition of Tuoi Tre (Youth) newspaper reported on February 28 that network congestion was an issue for all the three biggest network operators in Vietnam – Viettel, MobiFone and Vinaphone.
Meanwhile, online banking systems of local banks and other third-party payment applications also suffered from the same problem on the ‘national top-up day,’ as dubbed by Vietnamese netizens.
A spokesperson from ZaloPay, a digital wallet service run by Vietnamese technology giant VNG, told Tuoi Tre there was an unusual surge in transactions made on February 28 as a result of ‘final’ promotion campaigns run by mobile carriers.
According to the spokesperson, on Wednesday morning alone there were ten times more top-up requests made through the payment system than usual, with the total top-up value being 20 times higher than a normal day.
“The large volume of transactions happening at the same time led to a temporary jam in the network. A short delay is expected as the system takes time to process all the payments,” the spokesperson said.