The industry run Advertising Standards authority brought out their latest report two weeks ago. Perlico show up a good bit. Here, here, here and here. All complaints about them were upheld.
Most of the complaints were about pricing issues and dodgy terms and conditions as well as this famous deceptive flyer but one was about the fact that Perlico billed their 1Mb broadband package as “superfast”. They aren’t allowed to do that anymore.