Problem with PIN and PUK

Dear ladies and gentlemen,

I have the following problem, an acquaintance took my cell phone by mistake and tried to access it as if it were his and ended up blocking it.

I can not find the card where my chip came to check the puk number. I did not bother to write it down either. I tried following the instructions on retrieving the puk number through the site, but it looks like it needs to have an account with the phone number linked.

I tried to make this account, but it sends a password to the sms and as my phone is locked, I can not access that sms.

I am out of germany and have no expectation of returning early. Is there any way to contact technical support where I could get the puk code? I have to prove that the chip belongs to me, because I still have the contract I made when I bought it.

The reset of the cell phone is out of the question, because there are files in the phone that are very important to me.

Thank you.