Telstra customers have reported the outage on the network at around 6 p.m. on Thursday night following which the telecommunication giant has announced another free data day to compensate its customers.

The Telstra network resumed its normal operations from 7:30 p.m. onwards, but the company offered to pay for the one and a half hours inconvenience caused to its customers by announcing free data day on April 3, Sunday. According to Mashable, almost eight million customers and 50 percent calls were affected during the down time. “We sincerely apologise to our customers for the inconvenience we have caused again,” a Telstra spokesperson said on Friday morning.

“As a way of saying we’re sorry, we’ll be providing a free data day for all of our mobile customers on Sunday, April 3. We had a problem that triggered a significant number of customers to be disconnected from the network. Reconnecting them to the network caused congestion. We had a connection problem overseas impacting international roaming customers which then had a flow-on effect domestically.”

The customers across the nation had been inconvenienced because of the outage as their Internet, phone calls and data downloads were affected. Twitter was filled with complaints coming from Telstra customers as they experienced the impact of lack of internet access. They complained about their inability to call or connect to anyone.

Telstra’s CEO Andrew Penn apologised to Australians on Friday morning. “I’m sincerely sorry to all of our customers, I know how much you rely on the network and how much you rely on the reliability of the network. On a personal level, I am deeply disappointed and I want to apologise to our customers,” Penn said.

Gizmodo reported that this was not the first but the second Telstra network outage reported in two months. In February, the company suffered the same issue, which prompted it to give its customers a free data day. Telstra Australia customers downloaded a huge 1,841 terabytes data in 24 hours at the time.