STILL FED UP WITH DSTV

On the 13th of December i made a double payment to dstv by mistake. I have been trying to have me refund R1300 that i paid twice. I've been to dstv multichoice in N1 City in Cape Town but the friendly lady who helped me said that the payment i made is not yet reflected on their side and should contact them once it reflects and i will possibly have to provide proof of payment. On Wednesdays i called the call centre and another friendly guy by the name of Alex assisted me and said i have to email a bank statement and identity document to *** and they rep**** that the documents has been received and will take 24 hours approximately to process my refund. This morning i received an email saying that they have received my documents but still need valid proof with reference numbers before they can refund me. WHAT MORE VALID PROOF THAN A BANK STATEMENT DO THEY WANT AND I HATE THE FACT THAT I HAVE TO SEND THEM NY BANK STATEMENT WITH OTHER PERSONAL INFORMATION THAT I DON'T WANT THEM TO SEE, NOW THEY TELL ME THEY WANT MORE VALID INFORMATION. MAYBE THEY WANT MY BANK CARD AND PIN AS WELL. EXACTLY THE REASON I DOWNGRADED MY PREMIUM PACKAGE TO THE ACCESS PACKAGE AND THE MONEY I PAID WAS FOR THE UPGRADE BACK TO PREMIUM. MAYBE I SHOULD JUST CANCEL DSTV AND REQUEST ALL MY MONEY BACK. THE CUSTOMER SERVICE AGENTS I SPOKE TO PERSONALLY WERE VERY FRIENDLY AND HELPFUL BUT THESE BEHIND THE SCENES PROOF OF PAYMENT EMPLOYEES CAN REALLY MAKE YOUR BLOOD PRESSURE TO BE HIGH. DSTV HAS DISSAPOINTED ME ONCE AGAIN.