We have issued a block against these ads so they will be removed shortly.
Clearly these kind of disruptive ads aren't what we have in mind when filling our placements.
Thank you for brining it to our attention.. I will be doing everything I can over the Christmas period to ensure all ads remain user initiated.
'Surely the way it seemed to pop-up without interaction, and can't be closed mean it doesn't adhere to IAB guidelines and should have been rejected?'
Completely agree.. this is where we stand when it comes to advertising so always let us know and we will do everything we can to get these ads removed.
Don't hesitate to let me know directly of any issues such as these.