Refund from Mango flight. I booked twice by mistak

I tried to send Mango flight the email. Asking for a refund after my husband did online booking using my bank card. I submitted all the documents to Mango Consultants. Then I was instructed to go to my Standard bank so they they can tell me when the amount will reflect in my account. Till today. Standard bank is delaying me by sending emails they are still processing my query. Now they are no longer giving me the time frame. This incident happened 28 jan 2015. They have been delaying. Till now they are not telling me exactly where is the money. Firstly they said it disappeared in my account. There was no such transaction taken place on the 28 jan.Luckily I have a statement as a proof. After that, they called Mango services. They said it could be at Nedbank because Mango services uses Nedbank.What am I supposed to say at Nedbank because my bank is Standard bank? I phoned Mango services again. They gave me payment authorisation code. And I had to go back to Standard bank. Now my bank is just not doing anything after that till today. Please help.<br> I need my refund of R1689.00<br> <br>