Airtel — Wrong date of recharge validity

I recharged with an amount of Rs 1799/- on 1 Jul 2022, at around 5:30 PM. The plan validity was for 365 days. That is, it should expire on 1 Jul 2023.

But Airtel keeps sending me a message that my plan expires on 30 Jun 2023.

When confronted, they say that I am in anguish and again reply with the same message that "your plan expires on 30 Jun 2023".

I know it's only 1 day or even a few hours difference, but if you let the companies do whatever they want we as consumers will suffer a lot in the future.