1- make sure your reading the correct meter, don't always trust the labelling if its in a meter cupboard / room.
2- make sure you've isolated everything
3- check yourself of somebody qualified to make sure someone isn't tapping off your supply in the cupboard.
4- contact supplier & explain the situation.
2- make sure you've isolated everything
3- check yourself of somebody qualified to make sure someone isn't tapping off your supply in the cupboard.
4- contact supplier & explain the situation.