I have get a call from +0044217 and say to me......

We would like to inform you that if you received a phone call and the one called you told you bad things, here are the following information:
You may check with the police station in order to file a complaint because you heard bad things during a phone call from someone you do not know.
The police will present the matter to the Public Prosecution in order to obtain a warrant to monitor your phone so that any calls will be received may be recorded in order to take legal action against the person who called you.
You shall follow up the complaint with the Public Prosecution until they certainly issue a decision to monitor your phone.