I was with Greenstar 3 years ago and they were fine whilst I was with them, however when I was moving house I gave them my final readings and tried to close the account. It took 6 months and a lot of stress to get them to close the account and give me my refund. I had to take legal action in the end. I got an email of apology and thought it was all over...3 years later I'm receiving harassing emails and phone calls again, saying I owe them money. Somehow they have reopened my account and are threating me again! Please do not go with this company, the stress they have and are causing me is unbelievable. I am left again having to take legal action, when it was them who owed me money.