LOVING the poem Jepsonclough.
I didn't notice the ad before either, I screen them out too. I think proof reading services are a bad idea anyhow, my friend's boyfriend, who once won an award for being a top English teacher, offered to proof read my stuff, but I've declined. I reckon I need to do this myself so that I can stand on my own two feet. Plus, no-one else can really understand exactly what you are trying to say and much can be lost, or expressed, in a grammatical detail.