The petition has now garnered 4,513 signatures in less than two weeks and as Mortgage Strategy went to press was ranked the 16th most popular petition out of nearly 2,278.
Charles Smailes, president of the National Association of Estate Agents, argues that the campaign has added weight because the 4,513 signatures are not exclusively made up of estate agents.
But he would not give details about individuals who had signed it.
Mike Ockenden, director-general of the Association of Home Information Pack Providers, says there are over 20,000 estate agents in the country and 4,513 is not representative.
He also speculates that estate agents could be getting their staff to sign the petition to boost numbers.