KDDI will spend about ¥7.3 billion to compensate all of its mobile subscribers following a major network disruption earlier this month that lasted more than three days, the firm said Friday.

The carrier said it will compensate 2.71 million users heavily affected by the network outage by returning two days' worth of their monthly basic fees. It also plans to pay ¥200 to all of its 35.89 million subscribers, including those receiving the extra compensation. The refunds will be deducted from their bills sometime after September.

“As a communication network operator that must provide stable services to sustain social infrastructure, we are taking it very seriously that we caused this kind of incident,” KDDI chief Makoto Takahashi said during a news conference in Tokyo, adding that the firm will thoroughly implement preventive measures.