Thanks all,
Richard&Tara, you shouldn't worry too much about 50% OFF leaflet if you are competing in the "quality" field. After all you can't get all people who receive your leaflet to become your customers.
Paul, that's a good idea actually

Neil, this design is actually slightly older, my current one has my name and address on it. TBH it's my name that kind of puts people off, as obviously I'm not a british person, and round here (Greater London) people get fed up with foreigners

But I like the telephone thing and going to apply it on the next batch

Thanks again for your input.
Emil