I received a bill from a private medical lab for blood tests taken over 3 years ago, the labs were requested by a private GP, and we never realised the bill was unpaid as we never received an invoice.
It seems there was a miscommunication between the lab and the doctors clinic and the lab were sending the bill to the doctor and not to me. They said they have only received our address now, which seems a bit strange, so I guess the Dr. office was just ignoring the bill and bouncing it back to the lab.
I truly believed it must have been paid so I have pushed it back to the lab telling them it was paid, until I put a bit of time into going back over our health insurance claims and realised it must not have been paid as I never put in an insurance claim
Its a substantial invoice of over £1,000, but the issue for me is my Insurance has a 6 month deadline for claim submission, so this bill is outside of our claim window, which means I will have to unnecessarily eat the cost..
Am I within my rights to tell them its a bill they need to write off as it's their admin error, and it's over 3 years old, or legally am I still on the hook for paying it.