Crackdown on spam text message firms
28 January 2012 Last updated at 09:53 GMT
Firms which send unsolicited text messages about credit or compensation, are facing raids and fines of up to £500,000.
The Information Commissioner's Office said tackling the issue was a "high priority".
Typical messages claim recipients are entitled to money, promise to write off debts or find a loan, or suggest accident compensation can be claimed.
But in many cases, the products they are selling can actually make people financially worse off.
Catherine Burns reports.