Due to the hard competition in the mobile market today, no mobile manufacturer or retailer can enjoy to have some relaxing time as any complacency can result in complete washout of the brand image in addition to lost customers. This is the reason why the mobile users are called as a "King" in the mobile world. They are given the top status because they are the one who helps the businesses to flourish and to sustain themselves. Businesses never forget the rules that an unsatisfied customer is not...