beware of this Shopkeeper in Dehradun by name of 2 brothers communication

In dehradun raipur a shopkeeper is there by 2brothers communication, beware of this guy he takes money with sweet words, doesn't provides the goods and then refuses to refund later and says jo karna hai kar lo. he took 15 thousand from me and still sold the phone and now i want refund so he is not giving me refund and before taking money he said if he can't give me the phone he will return money back and now he is refusing no money is returned in business.