No! At Extreme-SEO, we do not believe in using any shortcuts to attain high rankings for our clients and all our services are 100% authentic White-Hat SEO services. There are no short cuts to success and there are no shortcuts to higher rankings as well.
Some SEO companies do adopt such measures to quickly get their clients to the top of Google SERPs, but you should remember that websites that adopt such measures do not get away with it. Sooner or later, Google will identify the websites and penalize them, so it is better to stay away from any such companies which follow illegal tactics.