Can't unlock my Classic...

Hi everyone.
First, I must admit I don't know anything about blackberry...my bad.
Bought a Classic SQC 100-1 brand new, said to be unlocked,but unfortunately, when I put any SIM (in France), I get a message asking for a MEP Code....
Obviously, I don't know what it is, and how to get it.
I have a PRD number on the box, and the model is RHH151LW....
Could anyone help me with that please?
Thanks.

Welcome to CrackBerry...

You can try someone like https://www.cellunlocker.net/

ok. Thanks.

Also, if you're looking for other info, there's a good forum here specifically about Classics.

https://forums.crackberry.com/blackberry-classic-f419/