Pathetic Service

My sister is at wits-end with this bank. She was contacted to be told she owes R70 000 in bank charges as she left her account unclosed with them since 2019. My sister stopped banking with FNB back in 2013 and never used any profile since then. The bank has given her contacts of some lawyers to query this. These lawyers have no knowledge of her case. She is stuck not knowing how to solve this. I must add that she stopped banking with them under similar challenges in 2013 and was helped by standard bank to resolve that issue then. FNB has pathetic service, instead of changing logos they should be improving their service.