unfair treatment.

I am encountering a serious problem where my account has been closed for almost 3 months now, till today i still don't know why i have to suffer because of funds that i received. I have been sending emails and till today this matter still cannot be resolved. My account has money that i need to access and i cant due to the fact that funds were paid to me and i used them, only to find out the funds that were transferred to had suspicious transactions involved. Why am i being punished for receiving money from somebody that owed me money. 1.Is it fair that all the people that i send money to should also suffer? 2. how do i agree that the funds that were send to my account to held back when i have already used that money and by right i had every right to because this person that transferred money to me was paying off a debt. 3.So i need to understand what is going to happen to my account and the other accounts that have been closed due to this incident. How long does the investigation take for a case to be resolved.