after i paid reconection fee cash debit order out

after i went to pay my reconnection fee of R300 at Pick n Pay Hennemann, the following Tuesday 29th of December 2015 they debit my account with R285.00 after i explicitly told the person at the call centre to cancel my request. i would like to know from the useless company that is Multichoice, who will be paying my bank fees and airtime used to deal with this impractical Company. \Please note that we are experiencing high contact volumes. While we strive to address your query within 24 business hours