Refunded - into an Incorrect Bank account

Have been struggling to get my funds refunded. TakeAlot request my bank account details for refund and advised me that it will be paid in 3-5 working days. Its been 10days and still no refund, whenever i enquire they either refer me to enquire with Ozow / iPay / or to go and enquire with my bank. After alot of back and forth the financial department ensured me that it was refunded and send me a proof of payment... Only for me to discover that this was refunded into an incorrect bank account, i informed them of their mistake...... Till today!! This query keeps on being "escalated to the relevant department" and the relevant department keeps on send me back to either check witj Ozow or Ipay or my Bank. HIGHLY FRUSTRATED WITH THEIR SERVICE!!!