seems level 6 is capped at 28.500 even though my ground holds 57,000 and i have 108, 000 fans ??

if anyone is level 7 and 8 can you let us know how many fans you have as i don`t want to build stadium up if not worth it esp when it cost in excess of 50 mil for stadium, might as well save money up till the time comes as everything else is up to date