It sounds like someone changed your dash pad and neglected to change the VIN. Datatags.com is the only place able to do VIN tags legally as far as I know, the $300.00 fee is largely due to the time and paperwork invloved to do it legally. It will require some help from your local law enforcement ageny too. Datatags can talk you through what all needs to be done.
If you do not mind, please PM me or email me with the dash VIN, I can check my files on the off chance that the car it matches still exists.
T/Ake care,
Barry