Chargebacks

I am truly now fed up with the kind of service received by standard bank, i have a chargeback query of R4577 where a merchant charged my card to that amound for something i did not purchase, ive contacted tge bank and they rep**** saying it will only be sorted by 24 december, how are we supposed to get along and through tge month with ni money and i must wait till christmas before i can have food on the table due to poor service delivery, 4577 is a lot of money when one has nothing.