Hello, please help, i have filed i-751 and got the receipt notice for 48 months extension, today my employer asked me to provide new GC as my GC is expired. i sent him the receipt notice for extension letter, i am now worried will they fire me since i don't have GC however the receipt serve as a GC status. but if they fire me what can i do what will be my options and rights. i am just worried since don't have savings and got this job after going through nuts. please help.