Hi all. ok so my audi was working perfectly fine locking every door perfectly and boot all fine . used the car locked it up went in the house came out an hour later and the car was unlocked and will no longer lock. to my surprise the key doesn't fit the door only the ignition which was lucky the car got stuck unlocked. the car will lock perfectly fine from the door lock button inside . but due to the door lock not working I daren't leave the car alone as I only have 1 key also. the windows all work fine , and when I press the keyfob I can hear a relay click in the boot but nothing happens other than that. the boot unlock button wont work either . I don't think it's the keyfob as the car starts and drives fine and also it makes the relay click I don't know what to try new please help i will even pay somone got advice as my next stop is audi and that will be a fortune!! Please help ASAP because car is unlocked with windows down.