Liberty Mutual douchebaggery.

Help if you have ideas, please. My father died and he had 3 cars in NC. I could log into his account and cancel 2 of 3. It said I'd have to call to cancel that last one. I called and it would not allow me to talk to anyone - it wanted to send me to an Agent. The problem is it keeps sending me to MY Agent because it knows my phone number - my agent in California which doesn't even sell Liberty Mutual policies. I can't call from my father's phone because it was canceled when he, you know, died. I'm infuriated because my father's Agent is not listed on his bills and I have no idea how to find out who his Agent is. WTF is this? I have tried *69, and I have tried to turn tracking off from the Settings on my iPhone. It just KNOWS it's me. I have no idea what to do. My agent helped me by finding an online form I could use but no one has responded in weeks - and I'm sure they won't. They are getting ready to charge us again (it's on Autopay and my mom hasn't finished the process of getting primary use of his bank account). LIBERTY MUTUAL SUCKS. I'm so mad.