Line of work?
"The company's line of work is crafting official letters to help consumers claim refunds and/or compensation from firms they may have had unsatisfactory dealings with"
They missed off the for a fee bit. These companies only work for money, they are not the UK's admirable Citizens' Advice Bureau, which does help people for free.
For example, I have no doubt that AFK would have 'helped' me craft a letter to the company that provided a plumber who bodged a job with sticky tape (not gaffer tape for those who believe it can solve all problems). However, as the 'job' was done over a year ago and is now outside their guarantee period, and I cannot prove the 'plumber' just used sticky tape to 'repair' a part the costs less than £1 to replace, according to Citizens' Advice, I am unlikely to win in a court case. Somehow I expect that, for a fee, AFK would have offered to 'help' me. (But I don't know so so don't take my word for it.). Moral of my story, when you get a work person in to repair something, watch them carefully, and make sure they show you what has gone wrong, what they re doing to fix it, and photograph all parts they either remove or replace.