This is a scam aiming to extort money from consumers. There is no such thing as United Pay Services, United Processing Legal Department or United Investigation Department of Law.
Whenever someone calls you and demands money to prevent you from being arrested, it is ALWAYS a scam. No debt collector -- let alone a criminal posing as a debt collector -- has the authority to have anyone arrested for anything.
Ignore their threats and report their attempted extortion to the following law enforcement agencies:
1) File a report with your local police. Most police departments can take a complaint over the phone. If these crooks call your workplace, ask your employer to assist you by filing a complaint with the police, too.
2) File a report online with the FBI at
https://tips.fbi.gov and be sure to tell them that these crooks are trying to extort money from you using illegal threats.
3) The call is from a cell number in Florida, so file a complaint with Florida Attorney General Bill McCollum at
http://myfloridalegal.com/contact.nsf/contact?Open&Section=Attorney_General McCollum's office is very familiar with this kind of scam and has been very aggressive in pursuing them.
4) File a complaint with your state's attorney general. The contact information for each state's attorney general is listed at
www.naag.org Just scroll down to the national map and click on your state.
5) File a complaint with the Federal Trade Commission here:
https://rn.ftc.gov/pls/dod/wsolcq$.startup?Z_ORG_CODE=PU01If these scammers call you again, pay them nothing and tell them nothing other than that you know they're a scam and that you've reported them to federal and state law enforcement. To help law enforcement, try to keep all their messages and, if legal in your state, record your conversations with them. (Radio Shack type stores sell inexpensive phone recorders.)
Hope this helps.