How to activate helium mobile SIM card?

Hello there, I'm curious about the process of activating a helium mobile SIM card. Could you please guide me through the steps? I've heard it's a bit different from traditional SIM cards, so I'm eager to learn more. Are there any specific requirements or pre-conditions that need to be met before I can activate it? Additionally, how long does the activation process typically take, and are there any potential issues or roadblocks I should be aware of? Your insights would be greatly appreciated.