Report of ***** transaction in my account

Hi i have received an sms from this name its says " KNIAMB has lodged a debit order of R199 for date 2019 02 28 on your acc. For queries call ********** 167 ref DBLK24813 or for more information go to www.overflow.co za"" close cote. So what must i do? Because the debit order might take place on the 28th.