Upvote:3
- You may change details of your itinerary after the visa is granted.
- You may not misrepresent the details of your itinerary to get a visa.
Telling one from the other depends on knowing when you made the decision, so the second point really becomes:
- You should not cause the perception that you misrepresented your itinerary.
There are stories of people who got their visa annulled for such a fake booking.