PokerStars Casino - Account frozen for weeks with no reason

My account 394090423 was restricted pending ''a routine security investigation'' March 26th right after deposited 25$. Even though they said this usually completed within minutes, it took me 3 weeks to wait for the response after sending 2 online contact forms and a email to the support. The support requested me to send documents for the investigation. After I send those documents to them I received the email below:
Thanks for providing the requested information.

We've now fully reinstated your Stars Account. You're once again free to enjoy our tables and carry out transactions as normal.

Let us know if there's anything else we can do for you, we're here to help.
Regards,
Eric
Stars Security

When I tried to log in my account, it appears that my account has been frozen. Before I send those documents to the support I was able to log on my account but restricted with real money, during this time I only played play money and did nothing violates the regulation since my account was already restricted and I don't even have a chance to do so.
I need a explanation about why my account is frozen now even I send all documents required, and what about my money in the account.