This question is for any drain service technicians who may be out there.

Question:
I hired a drain cleaning service to clean out my main line and they claim they found my cap damaged when they tried to remove it. They put the piece of cap back in the cleanout and tied a rag around the cap to secure it(their story). Are they required to notify me (they didn't) of the damaged cap and/or potential problems?

Frustrated Landlord