EON Telephone Number 0345 303 3040
Founded in 1989 as Powergen, E.ON UK is an English energy company and a subsidiary of the German company E.ON, the world’s largest investor-owned power and gas company.

Contact EON customer service
The EON Customer Services number is 0345 303 3040 for pre-payment meters. The EON telephone number for Smart Pay As You Go is 0345 366 5996. These lines are open from 8am to 8pm weekdays, and from 8am to 6pm on Saturdays.
Social Media of EON
To contact EON Customer Services over the internet, go to EON. On the webpage there is a live-chat option.
Use the private message option to contact the EON support team @eonhelp on Twitter and @EON on Facebook (monitored from 8am to 8pm on weekdays and from 8am to 6pm on Saturdays).