Several websites have been identified as portraying themselves as the official SAM site and requesting for money for registration. There have been other reports that some outside sources are offering "help" with setting up SAM profiles for a fee.
Registration on the SAM website (www.sam.gov) is free. If someone is trying to charge you for your SAM profile, it is a scam. If someone is offering to help you set up your SAM profile for a fee, it is unnecessary and free help is available.