If you need support from Yola please contact us via firstname.lastname@example.org or make use of our live chat service! We are working on a new approach to community-based support and during this transition period we are not adding any new threads to this forum. Many thanks to everyone who has participated over the years and we look forward to unveiling a new peer-to-peer support system soon!
Here is possible workaround that might work for you. If you go to Site > Site Settings > Tracking > Site Tracking code and add your button code to your Header section, this may appear above your banner.
I suggest trying this on a test site first though!