IF A MESSAGE BOX APEARS SAYING "This page is asking you to confirm that you want to leave - data you have entered may not be saved"
CLICK LEAVE PAGE AND THE DOWNLOAD WILL START.
Some people claim the file doesnt unlock after a offer or survey has been completed if this happens it is usualy because you have given fake infomation or you are using a proxy.
9 times out of 10 the survey will unlock when the offer or survey is complete somtimes before you have finished. If the file fails to unlock you can leave the page open for a minute or 2 or try another offer.