I'm just starting with quickbooks and trying to link my credit card, but it is saying my credit card is unavailable..what do I do now?

Good evening, auraskin-soul-gm.

Thanks for joining the QuickBooks Community. QuickBooks Online provide the option to connect your bank and credit cards so all your transactions can be in one place. 

The best way to make sure you've got the correct bank connected to your account would be to head to your bank/credit card website, and copy the URL. Next, sign into your QuickBooks Online account, head to the "Banking" tab, click on "Link account", and paste your bank's URL in the search bar. Your bank will pop up if it's on the list of accepted banks. If it's not, you can submit a request for your bank to be added by following the steps on the screen.

Don't hesitate to reach back out if you have any other questions. 

@auraskin-soul-gm 

You can use MT Online or one of the converter tools (e.g csv2qbo @ $60 one time license) as a workaround.

https://www.moneythumb.com/?ref=110