Assurant return damaged device package Empty!!

This is totally ridiculous for T-Mobile to still be working with a company that is a scam. I too am going through the same thing as others. The stories I have read are the exact same as mines. Months later I get billed for not returning damaged phone. Assurant workers are so dismissive. I am beyond frustrated to have to keep calling back trying to get this resolved. I have my receipt from post office and tracking number. Been with T-Mobile for 6 plus years and this will definitely be a reason I leave the company for allowing this scam to continue to go on.