3. Using employee's private account. Each employee and even his/her relatives open 10-20 private account at many different banks, each of the account is assigned to one customer support, and used to handle customer deposit/withdraw for one day in the week, shifting between them and constantly adding new accounts
This last form in principle is the best way to deal with banks in the long run. They managed to get hundreds of private account and use them occasionally, it is decentralized banking practice which chinese government had no way to stop (Has been quite effective since the ban of chinese banking service to bitcoin exchanges)
I think that might work. But isn't it illegal in anyway, or they can freeze your funds if they find out that you are involved in a bitcoin business ?
Something from this :
In bitcoin business, we need to tell about change in bank account to customers as they need to stand sending INR to the new bank account. so it cannot just go under the radar.
It does not really matter, since there are new accounts added everyday. It can even be randomly selected from a large account pool. Banks must establish a special task force to deal with it, but the effect would still be minimal since those accounts are not in the same bank. In China, bitcoin is legalized as commodity, so you can't shut down private person's account due to commodity trading
Currently no one can say bitcoin is illegal since that will require a law to be written and passed by legislation. But banks mostly reject bitcoin business due to its high rate of fraud and money laundering, they just get mad when they receive police calls every day for certain transactions, all pointing to bitcoin exchange's account
In fact banks are facing such difficulty since the invention of internet, there are more and more fraud and money laundering on internet every day and bitcoin is definitely an attractive medium suitable to carry out such activities. But the thought of closing down bitcoin exchange's account will reduce the criminal activity is naive