Please explain why in my Dynadot account it shows 2 charges for 1 transaction (domain renewal) when I: 1) funded my Dynadot account with $10 (shown as prepaid with credit card) 2) renewed my domain
From the accounting it appears I paid 2x for the single transaction.
You submitted two separate orders. On the 15th, you added a prepay order to add funds to your account. On the 17th, you submitted the renewal order and used your account balance for payment.