I had the same with my last car at a month before the end of lease, dealer rings me to make an appointment for the service that the car was displaying in the infotainment centre and they said its has to be done because the car is telling them it must be done because their getting telemetry from the car that it must be done.
I talked to them until I was blue in the face as they just would not have it that MB will not pay for the service.
I got so annoyed with them I took the car to KwikFit for the MOT and as I was changing from VW to Ford I never went back to them again.
That said they phone me again a week after changing cars about having the MOT done as it’s illegal not to have one. It beggars belief that they don’t understand MB rules when it comes to services.
It was easy to reset the car so I wasn’t badgered by the car every time I got in it that last month.