What all I need to do to make my stadium is filled with fans (visitors)?
In fact, my Club is in level 5, and I built the stadium from Level 6 (improved it to Level 7) with a 43,000 seat:

Tickets for the league matches is 5K , for the Champions League is 6K, for Cup matches is a 3K and for Friendly match is 2K. I think that the price of tickets is not expensive ?!
For matches (friendly) I have only 7000 to 14.500 spectator?
Where's the problem? What is my fault?
Are there any game manual (Rules) for this game?
Thank you all for your answers and help!