Be very careful. They forgot to set up my direct debit then hit me with a huge bill 9 months later
Despite ringing them multiple times this was not detected until I moved house and rang them to set up supply at the new house. Was not advised of this until I received a bill chasing me for the full amount after I had already signed up for the new property. Managed to negotiate a payment plan but Now I am paying double each month and am effectively locked in to them until it is repaid in full. Maybe this is their retention strategy.