Lock HELP

If you are near a boutique you can take it in for an exchange. Otherwise you will have to get brass polish. This happenned to me before...I purchased a brand new lock...got home and it was already discolored! I don't live near a store so I had to do a great deal of complaining to get a new one shipped out to me for no charge. LV really should inspect each new lock before giving it to a customer and have brass cleaner on hand. Good luck!
 
Well I took it back and they gave me a new one, but proceeded to tell me that it is something that will happen eventually anway.

It is something that will happen eventually. While the lock sits in it's little box on a shelf, it oxidizes, especially if the A/C is being used in the building. If you receive a dirty lock, you can easily shine it up with a polishing cloth or a little bit of metal polish and a clean cloth.