Cancelled order using « pay 4 »

Description

I was going through checkout at Best Buy and decided to use PayPal (since I wasn’t logged in at Best Buy and didn’t want to make an account there) and was offered the « Pay 4 » and clicked it. The first payment alert went through immediately on my credit card but I ultimately cancelled the order on the Best Buy website while still in checkout. Will my credit card just be automatically refunded or cancel the pending request. Or do I have to do something in my PayPal account?
Thanks.