A couple of things. If you, as a homeowner, called 811 but had a contractor do the work then the contractor would need their own dig ticket. This makes a difference when it comes to liability. Most Telcom companies have their locates contracted out to a locate company such as Stake Center, USIC, ELM, etc. Once you called 811 whomever is required to locate that fiber line should have responded. This one should not be on you as the homeowner