Fraudulent debit order

[TDT]

Good day

I received a SMS from a company called Dominant Domain which noted that a debit for R99.00 for RoyalBenefits will be going off my account on 31 March 2020.  I don’t know this company at all so this is definitely a fraudulently debit.  Is there something that I can do pro-actively to stop the debit before it goes off my account, or will I have to wait for the debit to go off first and then only can I request that the Bank reverse it?