How do I add a credit card purchase transaction that did not automatically download from the internet?

I can help you with recording your credit card transactions in QuickBooks Online (QBO), @Ghretta.

You can record those credit card purchase transactions by using the pay down a credit card feature in QBO. 

Follow the steps below:

1. Go to the + New button and select Pay down credit card.
2. Select the credit card you made the payment to.
3. Enter the payment amount and then the date of the payment.
4. Set the bank account you paid the credit card with.
5. Click Save and Close once you're done. 

You can also record a credit card payment by creating a check in QBO. Refer to the following article for more information about record credit card transactions and alternative methods: Record your payments to credit cards.

The following article for more information about accepting a credit or debit card payment: Process a credit card payment in QuickBooks Online. 

Please keep me posted if you need further help in recording your credit card transaction. I'll be here to assist you in any way I can. Take care and have a great rest of the day!