I'm here to help with your query. Let me point you in the right direction to get you started.
I suggest contacting our QuickBooks Self-Employed (QBSE) technical support team for assistance. They have the necessary tools to pull up your account information in a secure environment and investigate the reason why you have a higher charge than expected.
Should you decide to change your billing and subscription details, the steps are in this article: Update your QBSE billing and subscription details. Be advised, the steps provided in the article are only applicable for QBSE subscriptions from us, Intuit. Any subscriptions that are from Google or Apple, you'll have to contact them for changes.
In case you need help with anything else, or if you have clarifications, leave them in the comments below. I'll get right back to you.