Caller claim to be from a credit union in Nashville. Claiming to be associated with the credit union my decease sister used in Mphs.She said she had a certificate that she had to be give to my sister son. Wanted his phone # and address and work info. According to the credit union that my sister used in Mphs they we were told they have no association with anyone in Nashville. The number she called from was a Nashville #, but the # she left for us to contact her was a Ms #