NUFI National Union Fire Insurance Co Fraudulent Charges made to Checking Acct. Jacksonville, Florida

I discovered a charge as an "automated Debit" to my checking acct for $9.95.  It was taken out by
NUF Dis ins  with a phone # listed as 800-572-5848.
I called the number and found that it was "National Union Fire Ins. Co"...I spoke with someone there who was very rude and abrupt with me, she actually sounded annoyed that I was calling.
I told her I do not know who they are, and that I did not authorize any payment to them ever.
She told me that my husband authorized the payments..I told her that was impossible as we have a FIRM agreement for the past 30 yrs that I would handle ALL business in the home.  Plus I called him while she was on one line and verified he did not. She kept insisting he did...
This conversation got more heated as I told her I wanted to speak with someone in administration.
She hung up on me.
So then I called my bank and filed a claim for fraudulent charges to my acct on both 4/19 and on 3/17.  I also made a stop payment order on that company so they could not take anymore funds from me.  I also sent a certified signature requested letter via the USPS that the transactions were not authorized and I did not want their insurance, did not order their insurance and I expect that as of this letter our business dealings would be over.  I also told them that the next thing I would file would be a police report if I ever hear from them again.
Beware of these kinds of scams...check your accts often and when you find a discrepancy...act quickly and decisively.