Talk:Command Center/@comment-121.97.255.194-20130330124537

I'm in level 11 with level 2 command center, i wanted to upgrade to command center to level 3 so it needs 300,000 metal and 300,000 oil...i have a level 3 oil storage that can store 310,000 capacity and a level 4 metal storage which can only store 260,000...i am not allowed to upgrade my metal storage since it will prompt level 3 CC needed...the question is how can i upgrade my CC if the maximum storage for metal is 260,000? help please =(