I know how challenging it must be to log into you amazon and import bank transactions to QuickBooks, @leo31. Please know I'm committed to providing you need during this process to ensure your can successfully transfer the bank details to Quickbooks Slf-employed (QBSE).

To connect your Amazon Business account to QuickBooks Online, you can use the Amazon Business Purchases app. 

Here's how:
 

1. Sign in to your QuickBooks account as an admin.
2. Go to Amazon Business Purchases app page.
3. Select Get app now.
4. When prompted, sign in to your Amazon Business account as the primary administrator.
5. Select the import start date. All of the Amazon Business purchases you made on or after that date will sync with QuickBooks for your review. This date can’t be changed.
6. Select Finish.

I've also included a detailed resource about working with Amazon integration which may come in handy moving forward: Amazon integration.

Know that we're only a couple of clicks away if you have other clarifications about connecting amazon to QuickBooks. We'll be available anytime whenever you need help. Have a productive day ahead.