"Did it have an S in the top corner? You probably got shards and not the full item."
It was an equipment summon so it did not... you should include an item log to prevent things like this from happening (or for easier reimbursement).
I got a 3 star ring from the free premium summon... but when I checked my inventory, it wasn't there. Are free players not allowed to have such stuff? =.=
Shall forward your comment onto the team ;)