How to cancel icloud service

I want to cancel my icloud service as I no longer want or need it. I canceled the automatic payment, but I was advised to contact YI technology to be certain that it is canceled. I tried calling the 8
“844” number, but no agent is available during work hours, I tried sending email, but unable to proceed as I couldn’t log in even if my yahoo credentials are ok. I just now send a chat message about this cancellation request via the Bot, hope I hear back from anyone and be certain my service is terminated. This is so frustrating, anybody here had similar experience with their customer service support?

Apologies for any difficulties you experienced. We’d be happy to take a look into this for you, please contact Attn - Samuel
Thank you.