STILL NO REFUND AFTER A MONTH!!!

I have never experienced such pathetic, unprofessional service in my life, especially coming from a financial provider and their debt collecting company BLAKE. Last year November I made a loan with Wonga and the debit order in December did not go through due to insufficient funds in my account. I then made arrangements with Wonga for it to go off on the 18th December, which it did. But prior to that I spoke to another consultant and explained I would pay half on the 15th December and the balance the end of December. Their was clearly no communication amongst Wonga and Blake at the time and myself. On numerous occasions I contacted them and emailed them proof of payment, my bank statement etc. I deposited R1500.00 via eft on the 15th Dec and the 18th Dec my full amount was debited from my bank account. From the 18th Dec up until now 18th Jan 2018 I have been fighting for my money that needs to be refunded. Their response is my query is in process. UNBELIEVABLE!! They are all quick to take you over to their debt collecting company and deduct your money but a lousy R1500.00 they still failing to pay back. It seems to me as if they do not want to refund me. I will be going much further with this complaint.