Lifestyle legal

I keep on getting harassed by life style legal for a sevice not provided , now I keep getting messages like thisSUMMONS CONFIRMED: Dear MR DEVICO your Summons has been drafted and will be issued by the court shortly. Failure to make Full Payment of your account within 24 hours will result in Court action. Your Ref# ********** 134930 . Email: ********** PAY NOW https://llegal.co//secureredirect.aspx?mid=579907&id= ********** 062084 LIFESTYLE LEGAL,I dont know how to resolve it and im not paying amount of money saying that I owe them ,there was no service