Wow, to be honest that seems terrible... If your T knows that you struggle with money, if she says that she'd manage the timing, then she allows going over time and charge for it with a note "hope you don't mind"?? I'm speechless... And when you use your whole strength to stay away but your T reaches out to you and at the end you have an additional (of course not free) session? ... I'm really sorry, it makes me angry at your T, I know how great she was and is for you and how helpful but I cannot stop thinking that she just does whatever she can to get more money from you... I'm sorry, I didn't want to attack your T, maybe would it be possible to make an arrangement with her that you'll pay only for 60 min and if it goes over, it will be her fault so she won't charge you for it? Not that she will ask you if it's okay to pay more, but to agree before sessions that it is not okay and if she's as good as she claims in managing the session time she should be able to help you stopping after 60 min...