More than once in recent years, we have explored Scottish Power for a more economic tariff with seemingly good results. Confirming acceptance on their website, we found with a letter of confirmation, the tariff was raised by £15.00 or more (currently). This was after we rightly submitted both readings for a week or so. Its a pity they scammed me, a Metallurgist, who by training is very prone to querying oddball quotations. I am now in the process of searching for a better Tariff for 2015. Isn't retirement great!