In order to have all the data regarding an agency (i.e. telephone, fax, etc) you can visit the page of the agency by clicking on the link that is located in the header of the rental property.

If you simply want to ask for availability and/or the price of an agency rental place, the better method is adding the property to the information request cart.

If you have a specific question for a rental item, then the better way is to use the contact module.