Appstack.com Lots of promises, no results, Internet

Appstack.com is, as they will proudly tell you, a goggle venture company. I expected a company affiliated with google would be truthful with a small business owner but alas they are not. It all began when i got a phone call from them saying that they could build me a mobile website, set up and manage a google adwords campaign for me. I told them i already have a mobile website and i have a google ad words campaign but i wasnt having much success with it. They told me that they could take care of it for me and provide me with leads for around 15 cents a click and 5$ per call with ten leads guaranteed per billing cycle. Well it actually turned out to be $10 a click and $22 per call, far more then i was told. So in the end ive paid them $600 and have received FOUR calls over 3 months. Ive tried to cancel my account and i have called 6 times in the past three days only to get their voicemail everytime. Huge promises to get your money and then they dont stick to their "guarantees." Avoid this company.