betfair pop up authorised or not ?

Hi noticed a pop up that i have not seen before it came up when i clicked on the forum section of this website today and wondered if it was supposed to do be there or not? i copied the link to it from the search bar,it may be legitimate but in case its not the moderators can sort it out.
http://promo.betfair.com/sports/uk/football/index.asp?rfr=9615&sid=9

If it was on the main site then yes, we do have pop ups.