Headset mic not working

Question

my logitech vantage bluetooth headset was working fine and has been ive beeen using it for a few hours and all of a suden the mic stopped working the headsat was purchased last week and this upsets me cause i had the logitech usb version and the same thing happened to it so i just upgraded to the bluetooth on cuz i wanted to go wireless anyway but i am in the middle of playing games online with my ps3 and my teammates depend on our being able to comunicate with each other so i need to fix this asap is there something i can do or do i need to take it back and get another one