R2900 DEBITED WITH NO EXPLANATION!! REQUEST REFUND

Multichoice debited R2900!!! From my account without consent or explanation! When I called the call centre last Wednesday, a lady called Melissa explained that there were payment reversals as my debit at the end of September was returned?? My debit at end September was R978 and was definitely NOT returned! I've called the call centre twice last week and immediately emailed a 3 month bank statement to enquiries@multichoice on Wednesday night. I forwarded that same mail on Friday asking for a response and then again today. To date not an email reply, not a phone call NOTHING!! Totally unacceptable!! Multichoice knows that we are limited for choice and does what the hell it wants. Multichoice remember... OK was the biggest retailer not too long ago.... Look where they are today.....