After some discussions on here a few months ago I reported a certain website to DEFRA and yesterday I got a reply, they are taking action and ask me not to publish any details about the case as it might go to court. (So those of you who know what dealer I am talking about, please do not mention it)
For future reference, below is the details of whom to contact with concerns about cowboys breaking the Fgas legislation...

It was good of you to draw to our attention the information on the XXXXX website with regard to compliance with the F Gas Regulations.


Any further concerns about non-compliance with the F Gas Regulationsshould be reported to the Environment Agency or the local authority.


The person to contact in the Environment Agency regarding compliancewith the F Gas Regulations is:


Christopher Summers
Chemical Compliance Team
Waste & Industry Regulatory Service
Environment Agency
Quadrant 2
99 Parkway Avenue
Sheffield
S9 4WF


Email: chris.summers@environment-agency.gov.uk