How do I get my money back from Luno?

I'm curious to know, what are the steps I need to take if I want to withdraw my funds from Luno? Is there a specific process I should follow, or are there any fees associated with withdrawing my money? Additionally, how long can I expect the process to take, and are there any security measures in place to ensure the safety of my funds during the withdrawal process? I'd appreciate any information you can provide to help me navigate this process smoothly.