Hi
Well as you are on a web directory forum, perhaps i can give you some pointers.
Firstly, Scoot are a reputable directory that is actually part of the Touch Local Group, but would be wrong of me to say anymore than that.
People expect the world from free listings, don't get me wrong they serve a purpose but normally especially in our case a paid listing allows you to have a full page to explain your product or service.
Google are much more likely to index a page that has unique text on it apposed to a template page that has a name, address and telephone number.
I believe that you have a full listing with us but it doesn't appear like you have added any pictures, text, or accumulated any reviews, all which help push you up the search rankings.
I'm a little out my depth on PPC campaigns, but from what i know about our own campaign, 50p a conversion isn't bad at all.
As someone that works, lives and breathes a business directory, naturally i'm going to say directory listings are great, but one directory listing isn't going to change your world. The days of investing on one certain directory, sitting back and waiting for the phone to ring are long gone.
You need multiple listings across multiple sites, spending a bit of money here and there in a scattered but moderated approach.
By all means feel free to call on our main office number, 01789 761364 and i will personally discuss your own listing with us, and maybe point you at some of our more successful listings that have crafted a full page advert with us.