Banks Mis-sold Interest Rate Protection

Lee, who runs a kennels near Preston, sought financial advice from HSBC to protect against rising interest rates on her loan. She took out a financial product called a swap. However, she was not informed that if interest rates decreased, she would owe the bank money. As a result, she has paid the bank £17,000.

What was not explained to Lee regarding the interest rates?

How much has Lee paid to the bank so far?