Cellphone banking nightmare

My mother transfered money to my brothers account (R1400) on the 11th of December, only to realise ten minutes after that she made a mistake with one digit, she therefore called capitecs call center where she was told that the matter will be investigated, she made follow up and was told their are still investigating. She then went to the aliwal north branch where she was told the account belongs to someone in Richmond and the account is frozen. My mother is 58 years and sickly I feel Capitec should have measures in place to protect its clients from such mistakes. It is not fair at all to loose R1400 when it can be retrieved and reversed. Please advise on way forward as we desparately need the money.