Hi there, HAL713.
I'd be glad to help point you in the right direction to find out about why your subscription charge was different.
I recommend reaching out to a member of the Self-Employed Support Team. Agents have the necessary tools to access your account and view your billing details. Reaching an agent can be done directly through your account. This article provides the steps: Contact QuickBooks Self-Employed Support.
Please know I'm only a comment or post away if you need assistance with anything else.