The most important advice in such a case is to never give in to extortion and never pay! Giving in to blackmail does not solve the problem, it only exacerbates it.
Offences can be reported to the local police station. Importantly, only the person being harassed or blackmailed can do this, no one else can act on their behalf. In the event of a police investigation, it is worth preparing for it by taking screenshots, for example, to make it easier to prove your case. You can also apply to the Police even if no financial loss occurred.
Above all, follow these practical, general tips:
- Stop the harasser and don't give him any space! Never respond to their messages, don't reply to them, don't even engage in conversation.
- Don't give in to the blackmail: don't pay and don't send any more recordings!
- It is a good idea to take screenshots of the harasser's messages, which can be used as evidence later.