Unknown debit order

There a company called SA Payment Exchange,whom I don't know and they have been debiting money from my bank account which they are using different Reference every month they debit like TLC02258 and TLC03184,and when I phone them the guy said he will get back to me but he never and everytime I had go to the bank to reverse the money,and now it has affected my credit record. Their number is *** the other one is ***