Jiffy lube put oil in master cylinder?

I took my 08 honda accord to jiffy lube for an oil change and 4 days later my break petal stated going to the floor, I thought it was my break pads so I took it to Firestone they said someone put oil or transmission fluid in my master cylinder over $1900 not including the ABS system next day I took car to Just Breaks they said someone put oil or something other that break fluid in master cylinder over $1500 not including ABS. Call my insurance to get rental car and investigation they find the same thing. Investigator calls manager at Jiffy Lube he said its possible that it could have happened here told me to fill out incident report call the store for the report the GM says it did not happen here cause we don't mess with peoples break fluid I told him I have my last two invoices and they both are from Jiffy Lube and no one else works on my car. I'm wondering if I have a chance in getting Jiffy Lube to own up

Guess you know why folks shouldn't let high school drop outs that work at Jiffy Lube touch your vehicle!

Sue them. As soon as they get a lawyers letter they'll pay up.

What do you expect if you go to Jiffy lube?
Get your car serviced by a proper mechanic who knows Hondas.
Now you have a legal fight to get your car sorted.

"IF" they put oil in your brake fluid"which is also a type of oil" you would have never even noticed. No fluid compresses.

You brake pedal is going to the floor because either a caliper is leaking or the master cylinder is leaking due to the fact they wear out. Not because there's a different oil in there. Heck, someone could pour Beer in there and water is a fluid and it does not compress.

You would have never have known the difference.