An issued has occurred to the network of Vinaphone, one of Vietnam’s major mobile network operators, which affected the connectivity of many users.

The incident happened on Monday morning, and the affected users were mainly post-paid subscribers.

Quynh Anh, a Ho Chi Minh City resident, stated that the services were still normal on Sunday.

As of Monday morning, she was unable to make outgoing calls and receive incoming ones. The same thing applied to text messages.

“I don’t know why this happens. I have always paid my bills on time,” Anh elaborated.

Hoang Vinh, who lives in District 3, complained that the service error had negatively impacted his daily schedule and work.

“I thought there were some problems with my SIM card or my phone. It turned out many other Vinaphone subscribers suffered the same issue,” Vinh stated.

Another post-paid user in District 3, T.X., also reported the similar situation.  

The monthly bill is often required to be paid prior to the 20th day of each month, X. said, adding that there is no reason for the operator to cut the service on the 19th day.

“I was only able to make phone calls as of 11:00 am,” An, a Vinaphone subscriber, said.

A representative of Vinaphone admitted to Tuoi Tre (Youth) newspaper that their service had been interrupted on Monday morning due to a technical error during the upgrade of the subscription management system.

“We have promptly dealt with the problem and our services were back to normal,” the representative continued.

"This is an unexpected technical problem. We would like to sincerely apologize to our customers,” he said.

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