i was with this company for over 10 years , the bills just kept creeping up. i had the biggest shock when they said my monthly bills were going up to £400 in may 2018. in the same month i had a bill saying i was in credit by £3000. it didn't make any sense because soon after i had another bill saying i owed them over £1400....i was at my witts end at this point, the stress and anguish was horrible. i phoned them numerous times and was always fobbed off with answers that didn't make sense. i finally left them in November 2020. At one point ,they had the nerve to cancel my direct debit without my consent and they blamed the bank ,saying it wasn't them but to call my bank. i am in the process of going through the energy ombudsman to see if they can look into this . i phoned to ask for an update with the Eomb today , and i was told that they have offered a letter of apology and a good will gesture of £100, to which i kindly declined and the lady on the end of the phone couldn't have agreed more and they are going to investigate it further. i am not a fan of npower and looking at previous reviews on here i believe we all have suffered the same treatment.