When i purchased my 1st house, the previous tennant had left a £245 gas bill, to which we past on to the estate agent, to no luck. The gas metre was a pay as you go, which owed £32, to which i called scottish power to help erase it, no luck there either. Having heard good reviews from my parents i decided to open an account with them and stated the current situation and was told the previous bill will be disregarded and an engineer to come out and reset the gas metre for us to use. 3 weeks later and still no gas! An engineer came out to sort the metre, but to my horror they had transfered my name onto the previous tennants bill AND billed me even more for "estimated" gas usage. £297 now for "1 month of gas use" gas (bare in mind) i couldnt use from the in debt metre. After 9 phone calls and 4 months of trying, a call centre supervisor understood the situation and confirmed to me, my parents and my wife the debt was erased and the account closed for good after paying £1.57 for the little gas we used while waiting for a switch to npower....... happy days. 1 month later and i have recieve 3!! Bills, 1 for £16.83, 1 for the £1.57 which stated had been paid and now a 3rd bill asking for £125!! I instantly ran scottish power to ask them in a polite way "what the f!" I told them EVERYTHING from the previous phone call to delete the previous bill, to which they told me "they dont have the autherisation to do that" "so why would you tell me that AND why i have a new higher bill?" "The bill is from estimated usage" "when i COULDNT use gas in the first place because the metre was locked?how have you estimated that, did you pock a number out of a hat and use that?" "Our estimates may have been wrong" "so your going on an estimate? THERES your problem, ESTIMATE! Your literally guessing the usage and considering you have records of me asking for an engineer to unlock the metre and from all the previous calls regarding the situation, your fault lies in your estimation. I am not going through this again, get me your complaints department to get rid of this once and for all or you can chase this debt for eternity because im not paying a bill that a) isnt mine in the first place, 2) is on an estimated reading from 0 gas usage and 3) after been told the account was closed and nothing more would become of it". I would give these clowns -10 if given the choice but seriously, take my advice and never EVER even consider them a supplier, they rip you off and flat out lie to you.