There could be a couple of reasons why your renewal charges have increased. To confirm this, I suggest going to the Subscription and Billing page. From there, you're able to check the payments history and all the charges with your subscription.
Here's how:
Click the Gear icon at the upper right corner.
Choose Subscriptions and billing.
Select the Billing details tab.
For additional assistance to provide you accurate information, I recommend contacting our QuickBooks Support Team. They have tools to check your account to further investigate your billing details.
If you have any further concerns or questions, don't hesitate to post again here in QuickBooks Community. I'm always here to lend a helping hand. Have a great day.