Request-to-change-subscription-from-Premium-Annual-plan-to-Monthly-plan

I am currently subscribed to the "Premium Annual Plan," but I would like to switch to the "Monthly Plan." However, I am unable to change the subscription from my account due to the existing plan's settings.

Could you please assist me by canceling my current subscription so that I can proceed with subscribing to the Monthly Plan?

Thank you for your assistance. I look forward to your prompt response.