Losing hope and Multichoice

On the 27th March I paid multichoice R185.00 , but the transaction went twice, Multichoice only claimed the money on the 09 April 2015 and that's when it reflected on my statement as a Minus R370.00 I had to deposit money and my account will reflect badly , I called them on the 10th of April to get a refund and send statements. Today I am told its going to take a month to make refund to my bank account, Meaning they are forcing me to use it as credit . I am really getting really frustrated with the level of service I am getting why do they have TO TAKE THE WHOLE MONT TO REFUND ME? Seriously I am disappointed