Default [Q] phone reads card wrong

Hello Guys, my phone has a peculiar problem. I use a sandisk 16 gb card on my micromax a116. In app manager It shows only 2 gb is there on the card ( 2 gb card limit ie the card has 2 gb storage) but in storage option it recognises the card and shkws 14 gb is available. I am not able to utilize my card because of this problem. I have not rooted my phone. What should i do?