Unsatisfied client demands refund

I made an online transfer payment using my FNB online account for the financing of a motor vehicle, payment was made to Absa bank. I was given the incorrect details as to where i should make payment after having confirmed the same details by the same employee that the money which i made an online payment does not reflect on the system. An amount of R10 150 is somewhere lingering. I've tried to contact the Absa employee and the manager and i have not been assisted. The very same employee did not even apologize for the error and negligence. Instead they have been giving me the round around and blaming me for their mistake. FNB on the other hand can't reserve the payment since payment was made to a public recipient which is absa. I can't afford to lose a large sum of money due to the negligence of an employee. I want the employee to account for this mess as well as absa. I want a refund of my money. Urgently intervene.