Is Junk mail covered by advertising standards?

[Hairyloon]

My car insurance is coming up for renewal and I've just had an email from one of the companies had a quote from last year.
They said:

We've done all the work for you and found you our best car insurance price. To do this, we updated the information you gave us previously by one year, and made some assumptions.

and gave a very promising figure.
However, when I went to the site, their best quote with the same details was almost double. I don't believe that there have been any major insurance disasters this morning to push premiums up so much so it seems to me that their email was misleading.

If I don't get a satisfactory response from the company, is the Advertising Standards Agency the place to go?

[atticus]

I don't know what your search engine found, but mine came up with this:

https://www.asa.org.uk/Consumers/What-we-cover.aspx

[miner]

Not in my view.

[Hairyloon]

I don't know what your search engine found, but mine came up with this:

https://www.asa.org.uk/Consumers/What-we-cover.aspx

Thank you.

The types of ads we deal with include:

Magazine and newspaper advertisements
Radio and TV commercials (not programmes or programme sponsorship)
Television Shopping Channels
Advertisements on the Internet, including:
banner and display ads
paid-for (sponsored) search
Marketing on companies’ own websites and in other space they control like social networking sites Twitter and Facebook
Commercial e-mail and SMS text message ads
Posters on legitimate poster sites (not fly posters)
Leaflets and brochures
Cinema commercials
Advertising within smartphone and tablet apps
Direct mail (advertising sent through the post and addressed to you personally)
Door drops and circulars (advertising posted through the letter box without your name on)
Ads on CD ROMs, DVD and video, and faxes
Sales promotions, such as special offers, prize draws and competitions wherever they appear.