I have a warranty problem with a computer shop regarding my lcd monitor.?

go there, demand for a new monitor or a full refund,or else you will call the police. Call the police immediately when they give you an excuse. There are keywords that you must use when involving the police. Tell them they are "SCAMming" you for your money. Explain fully how they are scamming you. Taking your money, giving you faulty products, and then not giving you anything at all. They must honor their warranty.