Hey Wendt, not only are they not Christians, but they're not Jewish either. I think they might be Muslim, Shinto, Buddhist, Hindu, or G-d forbid Unitarians.
There must be some way to get them to stop calling. The Federal do not call list does not seem to have any sway with them.
I don't think they have any religion. No religious person who fears any God would turn into a lying criminal. These guys are plain scammers, and they don't care who they rip off.
Once you start receiving calls from Card Services International they will not stop calling. I have received over 400 calls from them in 2012.....yes I have a running log of each call. I have made numerous complaints to the Do Not Call Registry, Consumer Protection Agency and the Federal Trade Commission. Every complaint has went without a response from the Government. I contacted AT&T, my phone provider, they said all they can do is change my number and make it an unlisted number for a FEE! Go figure! I once asked them "How the heck do I get you people to stop calling and harassing me"; the response was "Die" and a hang up. My 7 year old answered their call once and they cursed him out! I have this recorded! These people are unbelievable and the Government just lets them continue with these methods.