They don't want to pay my money back.

I've been calling and spoken with various call centre agents giving me the same reference number with no success. I have logged a complain since 7th May 2015 and they advised that it will take me 7 working days. They told me about their internal banking problems and again promised to pay in 2 working days and I called again they promised to pay me within 2 days, every today I call again and receive the same reference number with the same unfulfilled promises. They keep on telling me to wait for a notification since last month and today which is the same story that I get. I even asked what must I do to get my money back as I don't know their offices and the call centre agents are not helpful. I feel like I'm wasting my time and resources with this issue and will not get my money back unless I fight very hard for MY MONEY. <br> <br> And what is the reference number for because its the same reference number and they cannot trace my complains instead they are telling me that every time I call they untick and it becomes a new complain and the calls are recorded for what good reason with this bad service?