If you refer...

1 - Nothing
2 - Nothing
3 - 100np
4 - 300np
5 - 500np
10 - Random Faerie & Random Gourmet Food
12 - Random Codestone & Random Gourmet Food
15 - 3 different spooky map piece and 5000np
20 - 5 different spooky map pieces and 1000np
25 - 1 laboratory map piece and 10000np
50 - 2 different laboratory map pieces, a council raise, and 10000np.
100 or more - A paint brush of ur choice and a council raise

The people you refered must neomail the_citygurlz saying u refered him/her.