Customer is always right, based on this principle the customer complain should be heard. Meny a times it is not a mistake of seller but due to carlessness of transport company, railway or postal department the customer has to face problem. Generally if the goods delivery has been delayed then seller can give few days extra for payment or if goods have been damaged in transit then he can offer additional discount. Even if problem is created due to natural factors, seller should always try to resolve problem of customer which will help him to increase profit and goodwill of his firm.