I Received my 360 remote

On the 10th September, as I have anxiety, phoned and asked for an engineer to do the change over.

I phoned and spoke to a CS and the first appointment is 17th September. I have been told by others that the V6 will do an automatic change after 5 days. The CS said the engineer would do a manual one.

So, will it just change up automatically which I am worried about or will V6 just keep working until the engineer comes and does the manual upgrade?