Translation of categoría

Do you know any people in Australia. I have delivered all the necessary information to the friends. Please give them a few more days to correct the letters (I was not in the office last week).
Usually in a place with a homegenous society hatred towards foreigners can grow much more easy as a small disturbance to the homogenity may upset the entire society. People are not used to changes.
The travel agent's representative promised that they would return us the difference of the money. They also assured us that we would get special treatment, such as extra drinks and a Kayak expedition.