There are a few reasons for this, but the primary concern is to prevent money from illegal activity being used for transactions on their platform. (captainaltcoin.com)
The commission is usually 6 % and may vary as per the country to which money is transferred and the fiat currency used for the transaction. (icotokennews.com)
Once you've got these printed keys, you can use them for any transaction by simply adding the pair of public and private keys into any existing wallets. (investinblockchain.com)