White line on my BB bold 9700?

So yesterday i dropped my blackberry and when i picked it up i saw that across 2 cm of the bottom of the screen there was a white line. It goes from the left side of the device all the way to a,what seems to be, a small crack about 1 cm from the right edge. How do I fix this and how must will it cost me assuming i do not have a warranty.
 
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