keeps calling my cell phone. going to mail them the bill. is

Left a msg on my home answering machine about outstanding balance thru PayCheck.  Since I've never used that service, deleted the rest of the msg when they mentioned PayChecks. ID listed "Toll Free Number" so I called back to find out the company is called Corporate Outstanding Collections.

It's Corporate Collection Services - other than that, not sure what they want.

received call from 800-472-5056; recorded message stated to call 866.606.1577 -- called and it's a service to set up bachlor/bachlorette type parties in Vegas?