The bitcoins are held in the wallet and are released by the seller after the confirmation of payment. Sign up. Some sellers with whom you trade might ask for your ID and some personal details. Once you have received your Bitcoin cash, either from the exchange or by buying it from the exchange, you can use it any way you want, just like how you would spend any other altcoin for that matter. You can buy Bitcoin with cash. Though Kraken had begun trading in Bitcoin cash in the last few days, it is only today that they started accepting deposits and withdrawals in Bitcoin cash, which is a sign of the growing use of this cryptocurrency in the recent days.