Have you tried the other locks?
Do you have another key?
As said, it's possible that someone fitted another ignition lock to your
car.
Also as said, spraying liquid in there will turn the crud into crud mud
and may well make things worse.
The problem is the crud has to come out somehow and the
I have had great success with a product called TriFlo. It is a mixture of
teflon particles and a liquid carrier agent in a spray can, the liquid
evaporates leaving the tiny teflon particles behind to lubricate. The
advantage is, it leaves nothing to collect or attract dirt and dust.
The liquid