iPhone 6 front camera displacement

HI,

i have an I phone 6 which is out of warranty, however the front lens is starting to become displaced, it's progressively moving further and further down to the right, I have not lost the use of the front camera but i think it won't be long before I do.

If I take it into an Apple Store will they fix it/give me a replacement? Or will I have to pay to get it fixed?

any help is appreciated.

thanks