Can you guide me through the process of purchasing cryptocurrency on LBank? I'm new to this and would appreciate a step-by-step explanation. Firstly, do I need to register an account? If so, what kind of information do I need to provide? After that, how do I deposit funds into my account? What payment methods are accepted? And finally, how do I select the cryptocurrency I want to buy and make the purchase? I'm eager to learn and start investing in the crypto world.