Found this deal on email from ENERGY HELPLINE
After some problems with previous supplier, this tipped me to move on to another with cash back and coupons :) seems good deal
Get Paid to Save
Get up to £40 cashback if you switch. Another £80 of vouchers possible on some switches.
Compare prices from all energy suppliers.
Special limited time offer.
£80 cashback is for switching to Scottish Power only.