Caller ID said 'CCS Offices.' Man (computer?) immediately demanded my address 'for verification.' I refused, saying I didnt know who he was, he demanded my address several times, refusing to tell me who HE was. When I got mad, he finally said he was a credit collection agency. Then he said 'Nationwide.' I said no collection agency should be calling me, he got snippy and said I had the right to refuse to give out my address. I said, yeah, I refuse. 'Have a good day' he said. The call came at 5:30 p.m. on a Saturday.