I booked 3 rooms for my family and a 4th roome booked by my friend separately for her family. We took 1h15m taxi from Dubai to Abu Dhabi, when we were at the hotel check-in desk, we were told that they had no rooms for us due to the hotel was fully booked by a group of government officials, so they had to move us to their sister hotel under the same group and would offer us a room upgrade. We had 2 children and 2 elders (over 70s), they did not inform us in any forms (no calls, no whatsapp and no emails) that the rooms were not available in advanced. I questioned the manager, she said they did email, that's funny as me and my friend did not receive any at all. I asked them to show me the email or prove it, they couldn't, how about telling me when the email was sent? they couldn't, ha.. that means nothing has been sent. They said since it's government officials but they couldn't reject, but I made my booked 4 months before my check-in dates. We had no choices but to accept the move, the other hotel is good actually but they didn't give us room upgrade as promised until I spoke to their manager.