Unknown daily deduction ***** department is not coming with a resolution to the problem

I previously had a card with nedbank I was not charged R10 every day. I recently opened a new card with them however I'm now charged R10 daily i wrote to their ***** department the said it's for insufficient funds. The card I'm using has only 1 debit order that never declines for that debit order, so they explanations don't make sense.Meaning by the end of the month they would have taken R400 cause it happens daily. I'm very disappointed because this has never happened before I guess I need to start looking for another bank