The consumer group Which? said the Government must give regulators more powers to crack down on "unscrupulous claims firms" that contact consumers about mis-sold PPI claims "without permission."
Richard Lloyd, executive director at Which? said, "Consumers can register their frustration with nuisance calls by using our new complaints tool which will send a clear message that more needs to be done to stop this menace."
Mr Lloyd's comments came as the Citizens Advice Bureau said more than 30 million people have received unwanted messages about claiming for mis-sold PPI.
The Citizens Advice Bureau wants cold calls about the mis-selling of Payment Protection Insurance (PPI) to be banned and said it is "completely unacceptable" for calls to disrupt family time and work meetings.
Over a third of the complaints Citizens Advice handles about financial services stem from a cold call.
There is a particular problem with claims management companies. People are finding that sometimes the promises made over an unexpected phone call aren't delivered.
This means people who have been mis-sold PPI lose out twice: first at the hands of the bank and secondly from the claims firms because they don't get the full compensation they deserve. I want financial services firms to be banned from cold calling.