This company has switched me to a supplier that costs me significantly more and have completely failed to engage in any meaningful dialogue as to how that has occurred, let alone attempt to put it right. If you compare the unit costs and standing charge between two suppliers and one is higher than the other, it is impossible for the higher supplier to be cheaper, regardless of how the cost is spread or whether annual usage is estimated or actual. Everybody makes mistakes but I wish they would just own up to it. I’m beginning to suspect that they actually have no idea how their algorithm to make supplier comparisons works.