Hello, We have two year old shop with our brand name, with 10 brand domains (.COM included). Brand name is not registrated as a trade mark. Today we got email from china hosting company like this: Dear CEO or General Manager, Please read this letter carefully since this is an urgent case. We are an agency engaging in registering brand name and domain names. Today, our center received an application from (business name) International Ltd applying to register (our brand name) as their brand name and some top-level domain names(.CN .HK etc). After our careful investigation, We found the main body of domain names is same as yours. As a professional registrar, We are obligated to inform you of this situation. We are handling the application and we need to confirm whether or not you authorize them to register them? Let me know your answer ASAP so as to solve this promptly. Thanks for your cooperation. What should we do?