Did a patio pressure washing job from a referral two days ago. Had no outside tap, so ran a hose into the kitchen and used an adapter to plug it into the tap. No leaks. Did job, even got tipped due to how happy she was with it. Get a call from her daughter today "your pressure washer has leaked as there's water under the lino in my mum's kitchen, gonna have to rip it up and get new one, also I'm not happy with how much she paid, I don't think it's worth that." I said I didn't see a leak when I was there, (but how much could lino cost for 3 square ft of floor) but I'm happy to pay for getting new one. I don't know if she's trying it on or what. How would you deal with this kind of issue? Refund?