Terrible Service ?

My Mom has been banking with FnB for a decade now ,she has trusted FnB with her money but only to found dat she will lose her hard earned money from ds bank,she has lost R12 100,only to found dat de transactions made with de duplicate card were done on FnB atm dat dey claim dsnt have camera footage,my mom later discovered dat transactions has been occurred by her card on some complex n no notification were received by her dat her card is being used to make withdrawal,FnB is failing to help her as she went der several times seeking for their assistance on ds matter but dey ddnt come back on her with de respond on how de case is gng she carried on gng to de Springs branch as it's near her for follow up but nothing has been done,she got no help from FnB staff,she has opened a case with no luck of getting help,ds incident took place on 29 of April 2021 but still now she's not getting any help..My question lies on why are your Atms not camera covered since we all know dat such incidents take place,why are we not taken serious wen we report such matters,if she ddnt make follow up on ds matter I'm sure she wld b still be waiting for you guys to give her feedback,she used her own airtime, transport money to follow up on ds matter as she reported it early but still shz not getting any help,is ds how u treat widows who are trying by all means to save de little dey have?R12 100 it's a lot of money n it's needs to be investigated but she was rudely told dat Dez no case as it seems like it's no card clauning so dey can't help her further,we won't rest until she gets wats due to her????