I lost my device

I’m sorry to hear that, Shivaku. What/who has automatically cancelled your claim application? If it was Apple, then there is nothing we can do here to over ride that decision. This is a community forum. We are simply Apple users trying to help other Apple users.

Here are Apple’s suggestions as to what you can do to make sure no one can access the information on that phone.

If your iPhone, iPad, or iPod touch is lost or stolen - Apple Support