potential **** caller from momentum

my mom has been cold-called by somebody calling himself quinton naidoo. He claims that my mom was referred to Momentum by a family member {which is complete bull****} No family member of mine will refer us to anybody! Nor would we refer any family member to somebody else! Its an understanding that we have AND it keeps us out of trouble! I have asked him to tell me the name of this family member who refered us to him...he said he doesnt know or cant tell us. This is a RED FLAG and tells me that this is a ****!!!!!!!!!!!! I was still pleasant with him and told him that i cannot carry on with this conversation or consider giving momentum any business if he cannot tell me the name of this family member which i can verify. The whole thing is just very fishy and ****my to me. If u cant answer a simple question and give me what i want, then i will not give momentum anymore of my Mom's business! I could be wrong here, but I cant and wont take the chance with a potential *******! the phone number which showed up was ***.