Unauthorised transaction from capitec

i have been banking with capitec for more than 15 Years, i was one of the clients who started with Capitec bank, they made an unauthorised debit on my account to the amount of R2762, 00 that i needed to use it very urgently, i tried calling capitec with no ala i even went to three of their branches( capitec Medow point, capitec East Gate and eyethu mall) with no luck, you can imagine the frustration capitec bank is taking me through, are banks allowed to just debit their clients money even when they are not authorised to do so? is that not bullying? i feel bul**** by Capitec bank and being inconvenienced to the highest level despite of this cost of living that is too high. can Capitec give me my money back and stop frustrating me over my hard earned money, i am resorting to hello peter because Capitec seem not to care about my request to reverse my money that i desperately want to use.