Begging for my own money

On the 30th of July 2015 I made a payment for a full annual subscription amounting to R 11418.00, on the 3rd of August 2015 my account was debited via debit order for R 11 418.00. As a result, a double payment has been made. Since then I have completed and submitted all the requested info but the refund has still not been processed. This is ridiculous as nearly 30 days have passed and the issue is unresolved. Enquiries ignore my emails. Guess this is the service you you expect to receive from a greedy corporation. PAY BACK MY MONEY!