Debit order reversal/bad customer service

Arrangement of 3months has been made with capitec for an amount of R2800, however capitec does not stick to arrangements. I have complaint last month about the same issue as this inconsistencies badly affect me. Today they double deducted me, amount of R7450.33 and R7722.63 instead of R2800. Urgently assist me with this reversal as there is arrangement at place. Reversal of R12372.96.

I Would really appreciate if my query can be attended on or before 9:00am 23/06/2021 before this courses more damage as its already 2 months in a raw