SSE may have dropped their prices, but they'll be trying claw money back in other ways, like scrapping the free phone number customers can call them on.
The energy company have stopped using the 0800 number, and instead, fired up the 0345 numbers, which will cost you (up to) 9p a minute from a line land, or 40p from your mobile.
Now, you may remember that the rules around 0800 numbers changed recently. The short version is that Ofcom said that 0800 numbers had to be properly free, with no hidden costs. This change has seen a number of companies having to be straight-up about any charges that crop up when you ring them.
SSE are throwing the blame at Ofcom, even though they could actually run a free phone service if they wanted to. The energy company said that this was adding a "a significant cost". They also assume that most people have inclusive phone minutes packages, so it should be free in the long run (tough cheese if you don't).
Of course, if you want to ring a company for free (any company for that matter), there are ways around it. You could try the WeQ4U app for starters.
The app says: "WeQ4U is a FREE Android/iPhone App and Service that puts you through to UK 01,02,03 and 08 numbers for FREE, without queueing. Mobile users save approx. 35p per minute on their 084 and 087 calls with WeQ4U, whether they encounter a queue or not, so it saves you money and time."
Give it a whirl. Don't give misers your money.