Not sure if this is universal but I took my 2016 Kadjar in for service and MOT about a month ago. I asked them to look to see if the Rlink2 has any appropriate updates. They updated it from version 3 to version 7 at no charge.
When I got it back the 'connected services' were not available. After getting in touch with Renault media they advised going back to the dealership for investigation. The dealership carried out the tests advised by Renault media and determined that the TCU (Telematics unit) requires replacing. That was yesterday - I'm waiting for them to get the part in so a can arrange fitting. This is being done under warranty