bitcoin recovery when exchange ceases business I had bitcoins with Coinroom exchange but I see they are gone. They should be independent of the exchange that manages them I assume. How do I recover my bitcoins or get them allocated to another wallet? Thanks, Peter
They should be independent of the exchange that manages them I assume.

Should be
If coinroom was a regulated currency exchange then there might be some financial arrangements they would be required to make by law. There is no indication this was the case. Even if it were the case, people often set up businesses that do not obey the law, through carelessness, incompetence or deliberate criminal intent.
Cold storage
Coinroom may have claimed they kept funds in cold storage but I am not aware of any independent audit of their processes - no one can easily tell whether such claims were true.
Even if they were kept in cold storage - that does not by itself provide any guarantees about how those funds would be disposed of when the business ceases operations.
Not your keys, not your bitcoin.
When you buy BTC at an exchange, you are giving money to someone else that you trust. The exchange owns the BTC not you. What you &quot;own&quot; is a debt whose amount is denominated in BTC.  You have 0 BTC until you use that exchange's facilities to transfer that BTC out of the exchange and into your own standalone wallet - to an address for which only you know and/or control the private-key.

How do I recover my bitcoins

Creditors of a failed business
When you gave money to the business in Poland, you would, if prudent, have made a note of the registered company (if any), its address, registration details and it's owners and managers names etc. You could then find out the legal status of the company and if it has been placed into any insolvency process by company regulators in Poland. If so, you might be able to register as a creditor in any winding up proceedings.
Debt recovery, breach of contract etc.
You gave some money to a business in Poland. The way to recover money from a business in Poland is to engage a lawyer in Poland and see if a prosecution is possible under Polish law. This is likely to be expensive. It will take a long time (compare MtGox) there is no guarantee that this process will be successful.
Recovering stolen money
If you believe a crime was committed, you could report the crime to your local police. I wouldn't hold out too much hope of recovering your money, especially if you are not a resident of Poland.