MySkoda Android and early awakenings

The last 2 mornings I have been woken up at around 4am by phone making the notification ping every second. There are no notifications on the screen and no way to stop it. The phone is on Do Not Disturb in the night, so it should not be making any noise. The only way to stop it is to shutdown or restart the phone.

I have been trying to work out what could be triggering a notification at that time. When I was out running this morning, I remembered that the car often finishes charging at about that time, and sure enough, when I checked the power consumption, charging stopped at the same time that the notification sound starts on my phone. I usually get a notification to say that charging has completed, which I have not had the last couple of days. I also recall that MySkoda updated in the last couple of days.

Anyone else getting mysterious notifications? I am going to report a bug to the MySkoda developers.