Stuck ignition key

I have an automatic Chrysler Neon(2.0L) and registered in 1996(UK).
Last night the key got stuck and I cannot take it out.
Its in the normal remove position and I cannot take it out. I can
quite happily start and drive the car currently.

1. Could someone please advise on the nature of the problem...?
2. As I still have few months warrantly(from a local car dealer), will
the fix be covered under warranty?
3. Is it worth contacting Chrysler official dealer in London(UK) for a
fix?
4. Can I check or do something by myself to see/fix the problem?

Thanks in advance for oyur help.
Sandiyan

 

I'd try shooting a little WD40 in there.

 

Much better, some "lock doctor" or colloidal graphite. WD40 just
washes out any lubricant that might still be there.

 

are you sure you are not turning the key too far back as there is an
auxiliary position one notch back from normal removal position

 

jiggle the steering wheel and play with the key.......

 

Thanks for the replies... I'll give it a try...
Sandiyan.