Was it canceled or just suspended?

What does it say in your self serve?

It was canceled got confused with the billing situation 

If it’s just completely cancelled, I imagine you’d need to settle the bill as when cancelled, it’s sent to a collection agency.

If you would still have difficulty with payments, I suggest  a lower priced prepaid plan. If you don’t pay, it’ll suspend automatically, and you’d have under 90 days to pay again to resume the service. There’d be no credit score impact, and no reconnection fees. And you’d have some flexibility to let it go a bit if you need to.