Whether your voted or not, your Member of Parliament represents you.
To find out who your MP is, go to http://www.elections.org.nz/voters/find-my-electorate and enter your address, or zoom in on the map. Once you’ve found out what your electorate is, click on ‘2014 election results’ and you will see the results and the name of the winning candidate.
For example, if you live in the Palmerston North electorate, your MP is Iain Lees-Galloway.
To find out how to contact them, go to https://www.parliament.nz/en/mps-and-electorates/members-of-parliament/ and find your MP on the list of names. Click on their name and you will go through to their profile. Their contact details are there on the left of the page.
This page is a good summary of all the ways to contact your MP.