Hello paid2,
Thank you for bringing this to my attention! I appreciate your diligence. I'll make sure to address those pending questions promptly. Your assistance is invaluable.

Dear Yamane_Keto,
Thank you for your patience. I confirm that the cryptocurrency payment script is currently being developed and will soon be available on the website. Regarding the address field, I am considering multiple cryptocurrencies, and the idea seems promising to avoid errors. As for the design, I plan to keep the service free and offer more choices in the future. Thank you for your understanding and continued support.