I consumed a Pyke shard for a 7 day rental but the champion is unavailable

It also was unavailable after a client restart.

If you're gonna fix it, can I get the shard back instead? Rentals are kind of a ripoff if you lose the shard. :(

Rentals could be a cool way to test out new champs in Normals if the cost wasn't so high however, I would much prefer to have a way to unlock all champions without paying the thousands of $ for them. I'd totally pay you $100 for all champions or maybe $0.25/month/champion to be able to pick my own rotation of ones I want available (with the option to enable one at champ select)... would be cool too. :)