How to buy chain swap?

Hello there, I'm a bit confused about the process of buying Chain Swap. Could you please guide me through the steps in a simple and clear manner? I'm particularly interested in knowing where I can find a reputable exchange to purchase Chain Swap, what payment methods are accepted, and whether there are any specific requirements or verification processes I need to go through before making my purchase. Additionally, I'd like to know if there are any potential risks or fees associated with buying Chain Swap that I should be aware of. Thank you in advance for your help!