Although you have already spoken with our Phone Support about this, I wanted to make sure our response was shared here in the Community as well. While I can understand how helpful it would be to include a logo or image on pop-up forms, at this time it is not an available feature. I apologize for any inconvenience this may cause. Being able to insert an image on this type of form is however a feature request we are in the process of collecting feedback on. In fact we have tracked your feedback on a feature like this in your account and have submitted it to our product team. A workaround we suggest is using a lead generating landing page instead or putting the logo on the webpage itself.