smart pattern making review for Zotabox Contact Form Builder

We have used this app for more than a year already and we will stop using this app due to their pricing structure as they want us to pay them more money for the traffic we are paying to get so hard and not for the usage of the actual contact form which is crazy. None of the traffic we have received has used a single contact form and they want us to pay them more money aside from the regular subscription we are paying that is a ripoff. Store owners beware of this app. Their pricing structure is not based on usage even if no one used your contact form they will ask you for more money as they did with the emails they sent to us.