Most of the times an admin will kindly ask you to stop breaking the rules. If you continue you will most likely be applied to the five strike system below. Note that the admins shall have full discretion to address any disciplinary action they feel is appropriate to the offence. That means that you may be directly banned or suspended if they feel that the offence is severe enough.

The five strike system
First offence: Short ban
Second offence: Short ban
Third offence: Semi-Long ban
Fourth offence: Long ban
Fifth offence: Suspension from the game.

If you got 5 chat / forum ban in the last six months or 7 chat / forum ban in the last year, you receive a short suspension (15 days). During this time you should not play on Power Soccer with any other account to retrieve your suspended one.
If you get 2 chat / forum ban in the six months following your short suspension your account will be suspended for ever.
If you behave during these six months after your short suspension, you will have a second chance: if you get again 5 chat / forum ban within six months or 7 chat / forum ban in one year, your account will be suspended for ever.