Still Awaiting Refund

There was a mishap where I was covered by two insurance companies. One was with my current insurance company and the other was with the new company. So when changing insurance companies I thought that everything would be sorted for the new month. To my surprise when the 1st of the new month come BOTH companies deducted money from my account. The very same day I contacted the new company to query as to why this happened and their response to me was that I need not to worry as they will refund me the deducted amount and that they will start insuring me from the 1st of next month. All this happened on the 1st of April, today is the 10th...I still have not received my money after numerous phone calls to sort this out and was told that I would get my money back by the Thursday 09/04/15 afternoon. This was said to me more that just a few times. Later I received a text to say that the money will be in my acc within the next 48hrs...WHY??? THEY SPECIFICALLY SAID BY THURSDAY AFTERNOON!!! I now can not by the necessary household goods to support my family as THEY are taking THEIR time. Disgusted. Needles to say they will not be having me as a client AGAIN.