We were hired to complete a radon project at a private residence where a deposit was collected and labor, parts and materials were scheduled and purchased. Upon showing up to the property, we discovered the information we were given multiple times by the owner was grossly incorrect. As a result, we were unable to complete the the project to the original scope and plan that day and a further assessment and further expert advice was given to the owner at the property. The owner and our company agreed to expand the project to meet the owner's requirements and a follow up quote and proposal was provided. Our technician was on site for 1.5 hrs and over an hour of travel time was required to get to and from the site. The home owner then decided to hire a non-radon certified professional (a plumber) and decided to not use our services going forward. We are now requesting that they pay the now overdue remaining balance for the original project we were hired to do which they have refused to pay. Are terms our clear that the the remaining invoice is to be paid on the day of the installation and we only agreed not to collect on on the day given we would expand the project. I am now going to retroactively apply late fees, accrued interest, etc. per our terms but I need to know if I add this to the final amount we will be seeking in a lien? I also need to know if I apply the fees to file such a lien if needed and service fees from Levelset in the lien amount? Or do I add these later if a lien is required to filed? Thank you!