Sarah Schofield, 23, who worked for the bank in Barnsley, admitted a series of theft and fraud charges when she appeared before Sheffield Crown Court.
The court heard that Schofield’s role at the bank was to advise elderly people on their banking and investment needs.
Evidence was given that Schofield was so well thought of within the bank that she was being earmarked for a career in management.
But the court heard that when Schofield made home visits to the elderly customers, when she should have been giving investment and banking advice, she was obt-aining details of the cust-omers’ bank accounts and using her banking expertise to access the accounts herself.
Evidence was given that over an 18-month period Schofield defrauded a number of elderly customers out of a total of more than 90,000.
The court was told that she transferred the money into accounts that she had specially created before moving the money into her own account and withdrawing it.
The scam was revealed when one customer became suspicious and contacted the bank.
Schofield used the money to pay her mortgage and to buy presents for her parents, telling them that she had won the lottery.
Jailing her for two years Judge Roger Keen, QC, said: “Your actions were despicable. In particular, you built up a relationship with an 89-year-old woman then started to take her money.”