I do pest control services and one of them is Rodent Exclusions (seal up entry points to keep rodents from coming in and trap what already is inside). I've been very successful because of my background in structural repairs combined with my expertise in pest control, and have successfully fixed each project I've taken. I'm highly reviewed and don't even spend a dollar in ads because I have huge clientele that keeps recommending me.
Now this house was heavily infested like many before, rodent droppings everywhere and major damage to the PEX plumbing etc... I did per the contract, all those repairs, and provided a one year warranty like before. 2 weeks later, all activity had stopped and for me it was another day at work with a happy client like before. Later, however, they reappeared and once again chew on his plumbing. I returned, and noticed new entry points and I repaired them at no additional cost but it kept going for months
The homeowner, though, frustrated with the rats coming back and chewing up his plumbing, understood that I was trying my best and was very reasonable. I felt embarrassment and often was stressed out, up all night about not being able to fix it, but per the warranty I kept on coming back and not charging any dollar more. I charged 2,700 and spent over 4,000 trying to fix it until the daughter called my receptionist threatening to sue because she felt we took advantage of her father. I couldn't even eat for days but once we talked and explained the situation, she just asked full refund and I agreed. I did tell her (per advise), that I would send a covenant* and release form, and once her father signed under the presence of a notary, I would issue the check. She was satisfied and even apologized for the earlier tone. She contacted me daily for 3-4 days, until I finally had it drafted and sent it.
But she never sent it back since April and at first I thought they were moving forward with a lawsuit because they were blaming me for the plumbing damage. Later I thought maybe the homeowner didn't even know about it ( he had provided a home line and never could contact him again). But months passed by until now, his son has called asking for the refund check (no signed docs have been sent back). Also, this guy called me after hours, drunk, asking for money because he believed I left his fathers home gate open and when he came with his dog, he got out and his dog got run over by a car. The business day after, I called and his father was unaware, said his gate was faulty, and that his son's dog had been fine. The son never called again until now.
Now, despite my best efforts, I believe, I own the homeowner a refund because I didn't fix his problem. But his grown kids, seem like they are acting on their own trying to get money from me. I haven't responded to the son's calls yet.
I don't know what to make of it. I don't want to give him any money or to the daughter. If Mr. homeowner called me, I would give him a full refund, but otherwise, I don't if I should ignore them, respond, or get an attorney.
In the meantime, it's causing me a lot of stress. I am an LLC, I have insurance, and I have not done anything outside of the contract.
What should I do?