“ No button I even searched on the page for 'click' and 'participate'. Where is it? (read full comment) ” 

Posted on February 24, 2011 at 5:21 AM EST

“ ¿Surprising results? For me, this results are obvious. No mention is made of the different operator charges applied to prepaid or postpaid users... (read full comment) ” 

Posted on February 17, 2010 at 7:15 AM EST