Mobile didn't remind me in time when my traffic ran out. It took 40 minutes to remind me, and I was overcharged by 489 yuan. Is it a violation of the right to know?

You haven't used up your traffic, and you haven't been reminded in time to move. It took 40 minutes to remind you that I overcharged you by 489 yuan. In this case, you can keep chat records and SMS information with mobile customer service, and then go to the website of the Ministry of Industry and Information Technology to reply. Someone will contact you soon, and that is the final solution. Whether the move is illegal or not and whether it is necessary to make up the arrears will be explained to you.