I have been a very happy contented Bulb customer for a number of years, and have built up a substantial credit balance,... however, since going into "special measures",.. my bills have almost trebled, with no discernable increase in usage,.. trying to get someone on the phone to discuss this is almost impossible,.... I know wholesale prices have increased, but they haven't trebled,... it almost seems as if they are scared of the balance accrued and are actively attempting to decrease it..... prior payments of 230 a month with a credit of >£1600... (ergo usage far less than £230)........ last bill almost £600 for the month!!!.. ridiculous! and NO ONE at all answering the phones!