While you may have been the originator, all advice and responses given were not necessarily intended only for you. This thread almost certainly has been read by people with varying degrees of experience and knowledge of such offerings, so while you may not have appreciated the posts, it is possible that someone else will. The advice to not buy such rolls is sound, and is particularly worthwhile for someone unable to shoulder the almost certain loss.
"Unsearched Rolls" - Hahahaha. This reminds me of the 1990's when I used to go to these computer sidewalk sales to buy used computer parts. There'd always be some guy selling a bunch of stuff at really low prices and it would all be advertised as "untested." I always wondered why a seller would not go ahead and test everything so that he could sell the stuff at a more competitive price. Then one day I decided to buy something and of course it didn't work. I suspected as much. Then I came to realize that every single item he had for sale was most likely tested and known to be defective. I see these rolls on ebay all of the time, especially when looking for silver. If you look through the feedback you'll always see 99% of the people saying they did not find any silver. But as they were not guaranteed any, they can't complain much. That must be a lucrative business. Buy a bunch of rolls, dig the silver out of them, re-seal them and sell the rolls for more money than you bought them for to suckers who think they'll find some silver.