How to buy crypto with Coinme?

Could you elaborate on the process of purchasing cryptocurrency using Coinme? As a beginner in the field of cryptocurrency and finance, I'm curious to understand the steps involved. Does Coinme support a wide range of digital currencies? What are the payment options available? Are there any limitations or fees I should be aware of? Additionally, is the platform secure and reliable for making transactions? I'd appreciate a detailed breakdown of the entire process, from signing up to completing the purchase. Thank you for your assistance in guiding me through this new experience.