Leasing a loaner xc60

Wife spilt a small amount of coffee on the console, there was no pooling. It was enough for a sip (whatever would sit on top of a yeti when you move it around a bit).

6+ weeks after the spill we left the back tailgate open overnight, car died, jumped it and brought it to Volvo. They said nothing was wrong besides a software update. We get it back, dies overnight again, have it towed. They say it was the battery. Get it back, dies again. NOW they find a small amount of liquid spilled on the console and they’re saying it seeped down into the console and that is the problem and we are responsible for the $1800 (at least) fix.

Any ideas? I want to fight them on it since there’s no way the amount of liquid spilled could have gotten into the console. And we had no issues for over 6 weeks. Link to the problem below

https://c.xtime.com/rH_8oGZWWgoA2GgJXX#/