I have been receiving several calls from some foreign guys claiming they are trying to collect a debt owed to Sonic Cash and that they are from the Department of Financial Crimes and if I do not pay the money I will be arrested possibly at my place of employment. I have asked for an address or to send me a copy of the crimes any kind of documentation and they cannot supply me with anything. They are going my the names of Anthony or Michael Walker. They have even called me at work and told people that it is a family emergency and told my supervisor that I wanted for several criminal charges (which could have cost me my job) I have told them several times that if they cannot supply me with some kind of legal documentation then I would send no money, I put a fraud alert on my credit about three months ago that only lasts for 90 days once those 90 days were up the calls started again so now I have placed and 7 year fraud alert on my credit, they have my social and everything. The last time they called I assured them I knew it was a scam and that if they really worked for the US government I was sure that someone with an American accent would work there and that they would know that I am currently married and no longer have the same last name, I have yelled and cussed them and threatened them with lawsuits and they continue to call. I don't know what to do...