I need help ASAP

My Mom suffered a severe stroke 2 months ago and her left side can't move. In the process my brother passed away leaving no will so I had to bury him with 90 of my money and money I borrowed. My Mom was discharged from Rehab a day before the funeral. I didnreach out to her bank Standard Bank to at least allow some funds transfered so we can make sure Mom has necessities such as nappies, meds etc. They initially agreed on thi s but then had a change o heart. I am the only remaining child and finding it very frustrating that even after obtaining a Special Power Of Attorney, Standard Bank is giving me the run around knowing very well that I am low on funds as I am my Mother's Caregiver. I honestly feel I am on the brink of a breakdown not knowing where Mom's next meal will come from. She can make gestures but is physically incarcerated and fed via a PEG. Can I take her to the Bank for them to issue a new pin as she has forgotten the old one..😪💔💔😥