Bad Service.

I did an incorrect amount transfer to Ackermans and when I called asking for a refund, they said I should email my ID and proof of payment to their relevant department and the money will reflect back into my account after 7 working days, the agent told me that they received all the required documents, I waited for the 7 working days but did not receive my refund, I did a follow up and they told me I should wait for 14 days, I waited and 14 days passed still no refund, I did a follow up agaaaaain after 14 days and they told me I should have attached my bank statement also and not only the ID and proof of transfer yet their the ones that said they wanted my ID and Proof of transfer ONLY. I emailed the bank statement and I was told that I need to wait another 14 working days counting from the day I emailed the statement. I must say I'm really not happy with the service I'm receiving from Ackermans customer service department.