If you can find a certain room type for an accommodation/hotel the main reasons are:
1- Non of the providers are delivering this room type
2-The system via Giata Room types is mapping several rooms together because it considers that is the same room type. This may not be always precise. You have the posibility of requesting Giata room type to be disabled. By doing this the system will not mix the rooms between several providers, it will only show the rooms with the provider that has the cheaper double room.
3-We have a limit in combinations that we can show. Currently is 60. A combination is a roomtype with a meal plan. So if we have 6 room types and 3 meal plans this will result in 18 combinations. The system will display de first 60 combinations.