asking a refund

I am writing to request a refund for the recent payment charged to my corporate credit card.

It appears that my subscription was automatically renewed. However, I no longer require this plan and did not intend to continue the subscription. As this was charged to our corporate card without prior approval, I kindly ask you to cancel the subscription immediately and issue a full refund for the above payment.

Please confirm once the cancellation and refund have been processed.

Thank you for your prompt assistance.