Over the years of my experience marketing and doing business I have come across all different kinds of people from all around world. The truth is that people are sharks, and documentation beats conversation every day of the week.
Are you someone that will lie just to sell something?
Come on now. Maybe short term this will help you but long term this will destroy your business.
That is why it so important to have integrity in your business. Don't ever forget where you came from and know that people are spending their hard earned money on your products.
It's nice to make extra money or even replace your full time job doing what you are doing but without integrity in your business you are bound to get caught and it's not worth it. It is so much more rewarding selling something and promoting something that you are proud of.