Debit order disput

Transaction reference number-KNKNTDFBRW60,i was told by bumasa to make payment via my capitec app i followed his instructions to do so,i spoke to a lady she said she will let the accounts department know to debt my account,as per bumasa he said they won't debit my account,i can make payment now my account was automatically debited,i have disputed the debit order cause I have made payment via my capitec app.