It has just been reported to me by a client that one of their sites (Ranked Under 20,000 at Alexa) had no effect. I suppose Alexa does monitor sites differently once they reach a certain level and it's good information. So please if your site is ranked extremely high in Alexa, please do not rely on our services, they may not increase in rank. The highest recorded increase so far is up to 200,000.
Interested! Please include this URL thread for our reference when you PM back with your details. Thanks.