did you then turn the key over and try the other side.. sometimes it works.. or take some graphite power(they sell it in small plastic containers), you just spray it into the hole of the lock and then put the key in and out several times and see if that works.... if you dont want to buy the graphite take a pencil and over a sheet of paper cut the pencil down the middle(split it open to expose the lead)then scrape the lead onto the paper.. this powder is the grphite. put it on the key or into the hole and work the key around and that should work... unless someone put something into the key hole??????
