im a new member on umvuzo health and i just received my membership cards and my son’s name and i’d is NOT on there but someone else’s son’s name and id number is on there Now wen i want to change its back because i pay for someone else

im a new member on umvuzo health and i just received my membership cards and my son’s name and i’d is NOT on there but someone else’s son’s name and id number is on there Now wen i want to change its back because i pay for someone else. i cant get hold of them (umvuzo) are they the kind of company that STEEL money from their own members. every number of then does not work and no one answers