I posted this as a tip as only some will find it useful.
I switched my electricity to Scottish Hydro Electric as it worked out the cheapest for me.
As an incentive for joining, i received a free card which allows me to buy gift vouchers for Argos and Homebase with 10% off....currently the same as Argos are offering just now i.e. spend £50 get a £5 free voucher etc
Also, I earn points (10 points for every pound spent on electricity - 500 points = £1 off at argos and homebase) this is in conjuction with the above offer.
(go to this website for further details)https://www.abshive.co.uk/w-indigo/index.asp?item=sse
Anyway, might be of interest to some DEPENDING ON YOUR POSTCODE...see if its CHEAPER to switch via USWITCH on quidco and get £12 back into the bargain)
sorry, long winded I know but not bad if you want the Argos and Homebase vouchers. Plus chance to collect points (I have 5100 points so far which is £10)