Acquiring a company without the assets and liability is not a legal way. The customer support team most definitely hiding the facts. If you have purchased the bitcoins and sent to your justcoin wallet, then the blockchain ledger is holding the proof of it. So if you are not getting any resolution even after following their escalation matrix, legal action is the proper next step to follow. However, do a risk reward analysis before you step into a legal battle. If the numbers of bitcoins are significant and can provide you with a significant earning even after the expenditure of a legal battle, then only go ahead with it.
Agree to this point which if you do have those purchased bitcoins in large numbers which would really be worth to fight on then proceed but if not then better to forget this matter because we do know the expense or process when it comes to legal battle which it wont really be cheap for sure.The thing here is that i was confused that assets and liabilities on previous company didnt able to transition into the new one?