Multiple debit orders on my account - 20 days later no refund

<p>My account was debited twice on the 4th of April and later that day i got a text message saying, i will be refunded in 3 days. It is now the 24th and No payment has been made into my account. When i call their call center billing deprtment number (011) rings off the hook, with endless voice prompts and music, and no response.</p> <p>First i do not understand, why i am being billed on the 04th or 3rd of the month, why can`t the debit order go off at monthend? I have been a multichoice client for 10 years and since the inception of my account i have been using a debit order system and not once have i had insufficient funds on my account; istead of a "Thank you" i get double billed.</p>