I have been a PS plus member since it began and have a boatload of free games. When I renewed my ps plus subscription it took most of the free ones and changed the purchase date on them also some of the games I have purchased to the renewal date. How can I tell what games I own and what are free with subscription?
The free gifted ones after the network melted down also changed purchse date as well.
For future referance you can always set it to folders and create a ps+ album and put all ps+ games in there as well, so you at least seperate downloaded purchases and PS+ purchases.
I would also recommend doing what I do, and record all PS+ games you download, I create a word document and write them in each time I download a PS+ game, that way I have an easy referance to which PS+ games I got.
So sony support said there aware there is a issue... then I was told as long as I keep my plus account open it will not be a issue. I stated that these are games I have paid full price for and I was told to call back after plus expiration if I can not access them...