A Tesla owner, who couldn’t connect to his electric car last Friday, did exactly what most frustrated customers do these days by complaining about it on Twitter. But unlike most customers who complain via the social media platform, he received a response from Elon Musk, the co-founder and CEO of Tesla, within three minutes of posting the complaint.

Journalist Jaehwan Cho posted the complaint on Twitter after he, along with many other Tesla users, experienced a series of server errors on the company’s app. The errors stopped Tesla drivers across the world from unlocking or starting their electric vehicles using their phones, according to NPR.

Users from countries like the United States, Denmark, Germany and the United Kingdom reported these issues.

After Cho put up his tweet, he received a prompt response from Musk that said, “Checking …”

The next reply from Musk came roughly five hours later and said the error had been resolved. “Apologies, we will take measures to ensure this doesn't happen again,” Musk tweeted.

Many were impressed by how promptly the founder of the cutting-edge technology company replied to the complaint.

Musk seems to pay quite the attention to the criticism Tesla receives on the internet. He also sometimes reacts in ways that are unusual for a famous founder. He once canceled a blogger’s order for a Tesla Model X after receiving an open letter titled: “Dear @ElonMusk: you should be ashamed of yourself.”

The letter, written by Californian venture capitalist Stewart Alsop, included complaints about a launch event for the Tesla Motors Model X, according to The Guardian.

In a follow-up post that was titled “Banned By Tesla,” Alsop wrote another message addressed to Musk and referred to a phone conversation he had with him about being banned from owning a Tesla car.

“I heard from our phone conversation that you feel that my post, ‘Dear @ElonMusk: You should be ashamed of yourself,’ was a personal attack on you. I also hear that you are not comfortable having me own a Tesla car and have cancelled my order for a Tesla Model X,” Alsop wrote. 

Musk later addressed the crossfire with a tweet and said he did not understand why a “super rude customer” was getting so much attention.