Poor customer service

I had an account with Capitec Bank and I was not using for more than 3 months since 2022 till now and they refusing to refund me and close the account as it was not used and I accidentally received an amount of R300 transferred to my account but is was used to pay unsuccessful transactions and now the Capitec Bank consultant Gopoleng from Dobsonville and her manager named Zee are refusing to refund that amount and close the account which was not in use since 2022 till date.😡😡😡😡😡