Not really, but if the convo went like that exactly I would have been on the defensive.
Maybe like this:
BTW, for some reason, the life insurance policy came out of the account today. Since I closed it they charged me 72.00 in fees! I called the company and the agent said he had no record of you calling and changing the account. Could you please call them again (see what I did here?) and ask them to change/cancel account?
Now, this will still put her on defensive. If she offers to pay, say "That would be wonderful, thank you"
If she doesn't, then consider it a gift, because you got to look at the way you are interacting with W and wondering if there are better ways to handle this