Landscapers Charging 3x Quote Due To "broken Mower Blades"

Location: Kentucky

Last Friday I received a quote for $70 to mow my overgrown lawn from a local landscaper LLC. They told me after I accepted the quote that they'd schedule with me.

Here's where I know I messed up: The quote said "minimum" but on the phone he said they'd be willing to reduce it if they saw it wasn't so bad. I ultimately accepted the quote as I was desperate to get it done before my HOA complains and I'd been ghosted by my previous landscaper. I feel shame1

I immediately followed up with email Friday to schedule ASAP and hadn't heard anything come this past Tuesday so I called them in the morning and they didn't answer. They returned my call 5:45pm and I wasn't home. The mowing started at 6pm. They ended up mowing areas of the yard I didn't want them to mow, including part of my neighbor's property and over a vegetable plant. Had they scheduled at time I was present I'd have been able to direct them.

I was not going to complain until I called them today, 3 days after the service was performed, to figure out why I hadn't received an invoice. They informed me that they "broke their blades on rocks due to chest-height weeds" so they will instead be charging me $212. When I expressed my frustration and said I should not be charged for them breaking their blades when I wasn't given a chance to outline what areas I needed done they said they will charge a 15% late fee if I don't pay their invoice by the due date.

I have video of them mowing and clear evidence the grass was not chest height. There are no large weeds in my yard and the only tall area that they cut was my goldenrod flower patch on the side of my porch.

I have a legal plan through my work I am researching how to use, but I''m hoping I can get some direction from y'all:

1. There is no due date on the invoice. How long do I have to pay before they can charge me?
2. I happened to be on the porch in front of my Nest Doorbell when they called about the mower blades, but the invoice doesn't itemize the blades. So without regard to that particular piece, what recourse do I have simply because their estimate was way off? For example, they said $70 but are they allowed to just say $500 arbitrarily? Is there a limit? What evidence are they obligated to show?

Thank you in advance. I appreciate any feedback. At the very least, they will receive an appropriate review on Google. :/