SMS about my credit approval

I received 2 smses in a space of 2 minutes, one telling me that a credit of a certain amount could be mine, the next one telling me that credit has been approved. I called the number on the sms ***, spoke to a very rude Lucia Tjhabalala, she wanted my ID number so she can check. I have never even been to Best and Home, now I get approval smses? Lucia confirmed that I'm not on their systems. Please do not allow this to go through in case someone is using my ID number.