I did a job and we had a contract/estimate, in the contract/estimate it stated that troubleshooting was not included along with any work not stated in the estimate. Upon completion of the stated work the homeowner stated that she needed the internet working in her house. This was during the height of the COVID-19 quarantine. We obliged her by figuring out why those plugs didnt have power and proceeded to fix the problem. now that everything is done she is refusing to pay for the work that was done. She is also threatening to call various state and local boards to complain that i am a "crook" i need to know what legal right i have to get paid for the work i did. I didn't get anything in writing that says that she was requesting this work to be done however i do have workers that heard her say these things.