RBC Insurance Auto Insurance Reviews

My dad passed away 2008 , at that time we changed home / auto policy to my 89 yr old mothers name - RBC even sent the documents " in the estate of " as well as a new policy under my mothers name.
from 2008 till present they have been sending the policy renewals in my mothers name and debiting her account .
Today we called to say we had sold the care and to cancel the auto policy . RBC is refusing to cancel the policy as it is in my dad's name ??
I I gave them the dates / copies of all the letters showing the recognized his passing and the policy was not in my mothers name ...
Not good enough apparently ...so until a dead mad calls them to cancel the policy they are going to continue to take $ from my mothers account for a car she does not own .

I was stupid and switched to RBC 4yrs ago, I haven't fit one good thing to say about them be it horrible customer service constantly increasing rates, and they refuse to fix your vehicle properly even when I took it to their approved facility. Now they quote me a price then won't put full coverage until I took it for inspection, so after 6 weeks of the only 1 place that does this for RBC finally doing it, they double my deductible, double the cost, say they won't cover the rims or the stereo, and they will only pay half what the auction value is on the car!! I have multiple vehicles and multiple house policies, and now ill be taking it elsewhere!! Did I mention I have no tickets and only 2 claims in 20 years!!