Unauthorized debit order.

I am really unhappy,i was told 2-3 months back when i visited a Capitec bank branch that any debit order that's less than R100 i will get a notification but while studying my bank statement i got to see that i have been debited R99 and R89 from a company i know nothing about,i than looked deeper 90 days back on the bank statement and i noticed more debit orders that are less than R100 but still no notification..on the APP it once gave me an opt to select the minimum amount i want notification on and i put it on R50 as i have a funeral cover that's R73 but every month i need to check if that debit order has gone...is there no way that capitec can fix this because its not really nice ,now i am charged for reversing a debit order after i was charged bank fees for that debit order i didn't authorize