The complainant dropped the charges. How to know if my criminal case is closed?

Dear Sir/Madam,

I have a criminal case in which I gave my bank account to a friend to receive her money. The case was basically a fraud.

However, the police called the complainant and agreed to settle, and he dropped the complaint.

Now, my file is with the public prosecutor. I met him last time, and he told me that he will close my case and start the process to close it.

However, he did not give me any paper or clearance for it. I also don't know when I should get the clearance.

How will I know that my case is already closed?