Energy firm E.On is sending customers a message offering customers free energy - for one day only. The energy firm has ...

Customers who download ... bill for Halloween. The email sent to participants reads: "No tricks this Halloween, just a treat on us. Here's a scarily good deal! Get a day's worth of free ...

E.ON Next, which serves 5.6 million customers in the UK, is offering selected customers free electricity this Halloween on ...

Customers who download the E.ON Next app can receive a £5 credit on their electricity bill for Halloween. The email sent to ...