We received three letters for a person I do not know and has never lived at my address. Two I returned and the third I opened . It was from their solicitor demanding a payment or it would be a summons. I have never been with Green Star . I have emailed Green Star three times also phoned but could not get through . I managed to get hold of their solicitor on the phone and she said they must have sent her the wrong address . The last letter came just before Easter and the letter said we would have to pay in seven days so we were really worried in case any body would come to our door .My husband is ill and we do not need the stress. The Customer Service needs to get their act together and act promptly . I would not give them any Stars.