if you keep getting the cant connect message then delete your profile then redeem it and it should work

this happend to me when i was doing the xp mod all day lol what you need to do is delete your profile from hdd and then recover it and your time should appear when you go back on to black ops

for all of you players that get server unavailable when you hit xbox live on multiplayer

this means that you have been banned
but your proberly wondering why it wont tell you the time left dont w ...