Free Eso on Ps4

hi.

So i bought infinite warfare legacy.

went into my purchased tab to download Cod4 R amd what do i see? ESO TU.

I didn't buy it but it says full game purchased a few days ago.

Downloaded the game and its Woking fine.

The free weekend was weeks ago and i couldn't find anything on ps store or eso website about a free week or something.