It's so interesting that you can't find anywhere reviews on yelp app easily, like from the point of view of businesses who use the app to promote and enroll with their services, even on the facebook page yelp don't have like a seccion for reviews, not even like google business reviews. I was contacted by a sales agent, he promises that they don't charge by advertinsing but just when the customer press the button to call (Lie), he also said I was going to have a free test trial for 2 weeks, in this time I was not supposed to be charge for that time the add were running and for the calls I received (Lie), he gave me $900 applicable to my account in 3 months (Lie). The second agent I talked to 2 days after, correct: 1. You're getting charge everytime people clicks on your add and the rates are like super high $23/ click they were charging me, and nobody called me or buy anything from the clicks I received from yelp. 2. there's not such a time as a free trial, i was getting charge for that "free trial" time that the first agent promised me. 3. the $900 bonus the fist agent gave me was just for addinitional adds, so I was still going to be charged, after the talk with the second agent I was going to cancel everything, but he convert the $900 bonus into a $300 credit for my first bill, so I was like, ok I will not lose for continue testing a couple of days, but then I found out that tehy were charging $28 for the following clicks and I was like, they must be crazy!, I called to cancel everything with them and the agent was very rude, she told me like "if you doooo some research then you'll know no company will charge you per call" like if I'm stupid, I was like " well that was what the first agent told me, so you should send him to research and train him", I also ask her like 3 times if I cancel the subscription I was still going to received the $300 credit, so at that time my bill was on "$214", so no money was going to be charged to my card, so she assured me in a really bad tone like "yes, you have a credit that will be automatically apply to your next bill like I told you befor", I just wanted to be clear on that as they said so many lies, I still haven't received the first bill, so I will see what the thruth will be as I hope not to have more surprises from yelp. I'm done with their agents. I took my time to post my experience so any business can understand more about what are you willing to expect if they're thinking on them. Personaly I think google adds, even fb works better. Thanks yelp, for making me lose my time...