two different VIN numbers

[BenzDslPwr]

My car never ceases to surprise me even though I thought I knew everything about it. I currently live in Poland where a car needs to get inspected for suspension, breaks, lights etc in order to be eligible to drive on roads.

So, I took my Benz to a local inspection shop for a routine, annual check-up. The technician tells me that my VIN number in the registration book does not match the VIN located on the firewall. I told the guy that he was full of sh.t and told him to re-check it to his disapproval. I went ahead and checked it myself. The number on the firewall was different than the other two numbers on the tags located on the window and the door pilars inside the cabin. The original (US) title that I had before I had moved to Poland had the same VIN number that the tags indicated. So, all the new paperwork that I got after the move matched whatever was on the original title.

For some reason, while buying this car in the US, I failed to check the VIN on the firewall because I compared the title to the numbers on the tags inside. Frankly, at the time, I never knew there was another VIN number in the engine bay. What is interesting to note is that both numbers are very similar to each other eliminating the fact that someone was trying to do something illegal with it. They both have the same prefix and suffix WDBxxxxxxxx167737 and all the tags attachments still look original, without any marks of removal.

Right now, I cannot drive my car until I have this resolved and this is my daily driver. Does anyone have any thoughts?