Any suggestions on the proceeding? (Australia)

After realizing that my bank account is suspended (by not being able to login to online banking), I called the bank, in this case ING DIRECT. They informed me that a serial of transaction used to pay me for bitcoins are from a stolen account, and provided information which leads me to find the questioned transactions. Then they refused to talk to me when I call again, saying that they will contact me instead. They also informed me that they are acting on the request of the paying account's bank.

I have records of all transactions with him from localbitcoins.com, including the proof of delivery of goods (Bitcoin is categorized as goods in Australia). This proof comes from localbitcoins.com - in case you didn't know, this escrow service takes 1% commission fee and holds the goods each time until the transaction gets settled in the bank. I also have my bank (ING DIRECT)'s monthly statements which includes the transactions in question.

The question I am asking, is what to do next? Apparently I wish to prevent lose. Bitcoin selling is legit in Australia. I am registerred as a sole trader, with Australia's business licence number, and I didn't evade tax. I have reported the case to localbitcoins.

I always finalize the bank transfer trades on the 3rd day, so that the transaction becomes "irreversible". I offended many customers with this slowness but kept my way.

I wonder what to expect when bank calls me. I have a legit business, but should I be afraid that banks will try to get me agreed on something to my disadvantage?

P.S. I did try to use Google for an answer, but 100% search results are written for those whose account is compromised, not for those who received payment from such accounts.