Somebody from our neighbourhood has been making prank calls to 999 and giving our address. First incident was apparently a call made by a child saying his dad was not breathing and gave our address. The next day, a call was made apparently by a 9 year old boy saying his phone was stolen and needed the help of the police, and gave our address. Both the London ambulance and the police attended the calls and turned up in our property. Of course we were shocked and had no idea who made the call. What shall I do to stop this?