You can make a report using the international toll-free number: +800 444 46300* **.
If your local telephone provider does not support the toll-free service, you can
call the following chargeable number:
+49 5361 946300*.
* Please note that the + needs to be replaced by the international access code.
** If there occur technical problems with the availability of the hotline, please use the other listed reporting channels to report your concern to the Investigation Office.