Credit Card Expired - unlinked domain

Site URL: https://www.3flatindustries.com/

I set up a website for a friend and when their credit card expired, it appears to have unlinked the domain from the site. Can anyone tell me if squarespace will try to process payment for the domain now that the billing info has been resolved? And subsequently reactivate communication between the two?

The site still appears to be live... for the time being.
I keep trying to contact support but get stuck in this never ending loop of sign-in pages that won't actually let me sign in. 

They will update, if the domain purchased thru Squarespace. Looks like the domain didn't expire while the card was inactive or the site would have stopped working.