Taking from a widow - shameful

In October 2020 my husband and I decided to go on to debt review and unfortunately July 2021 my husband passed away. I am very upset and disgusted with FNB right now, if blowing fire out my ears were real. When I notified the debt review company that my husband passed away, they contacted FNB to pay up all my accounts, as only my accounts were listed on ITC at the time of the debt review application. There are no FNB credit cards in my husband's name at the time of applying for debt review. Then FNB tells the debt review company that there is a credit card account from 2010 of my dead/ late husband that needs to be paid, guys, it looks like FNB is just trying their luck with a widow that just lost her husband. If the account needs to be paid, then why at the time of applying for debt review, was the account not listed on my late husband's ITC?? This account is 12 years old?? Is there any proof that my husband was contacted with regards to the FNB Credit card?? Any documents?? Voice recordings??