Payment history shows one iCloud at $2.99/mo, but credit card shows $2.99 TWICE per month.

Hello happy urbanite,

Thanks for choosing the Apple Support Communities. To see what you have been charged for, please follow the steps below.

If you see 'apple.com/bill' on your billing statement - Apple Support

"How to see what you were charged for

1. To see your purchase history, go to reportaproblem.apple.com.
2. Sign in with your Apple ID.
3. A list of purchases appears. To see family members' purchases, select the Apple ID button and choose a family member.
4. To see the full receipt including tax, tap or click the date. Multiple purchases, including subscriptions, might be grouped onto one charge.

If the charge is for a subscription that you no longer want, you can cancel the subscription."

If you are still unable to identify those charges, please contact Apple Support by following this link: Get Support

We hope this helps.

Cheers!