Mother passed away in February, got this letter of debt addressed to her

I'm pretty sure she ran up this debt before she died, it's not a ton but I'm not going to pay it if I don't have to. What's my best course of action?

https://imgur.com/a/srNLNIP

Submitted April 20, 2022 at 10:43PM by TiraelRosenburg https://ift.tt/2tyd9JR