"It has been just over one year that we have been working with you and we have just carried out a review of our advertising over the past year. The vast majority of all sales leads that we are getting are from the social media advertising campaigns that you are running for us. In addition it seems that potential customers consider us to be a professional and competent company, no doubt a reflection of the quality image and information that you have been able to convey through our social media accounts. I want to thank you for your hard work and innovative ideas that have helped to boost our image and sales during the past year."