Cut fiber line

Only one way to find out. Get a tech visit to repair it. Play dumb if asked how it happened. 

Thanks. We have an appointment set. 

If they charge you, I'd sure challenge it. I ordered fiber from a small company here, they buried the fiber 24 inches deep (checked it in several spots) and it's buried in conduit. With it buried in conduit and the slit from the plow still fresh it was easy to check the depth with a probe.  Now if a small company can do it correctly, plus more than code calls for, why can't AT&T?

Agreed. Are they not required to bury to code? I e seen where you posted the NEC code before. Is it 18”?

It's in this topic, they're supposed to go by code, but it's not well policed. You could probably contact your local electrical inspector and ask them what your options are it they try to charge you. I'd think AT&T would waive the fees rather than pay for the code violation.  EDIT: sorry didn't answer your question, yes 18 inches minimum direct bury. 

The spades the crew were using to bury mine didn't have an 18" blade, so it's very doubtful mine's that deep.

@JefferMC There-in lies the problem, no power spades.

My last fiber burial was done with a machine. Maybe 6 inches deep.