I was able to redeem this player card from the website but it did not appear in my collections. Already contact Riot and they said they will be looking into this. Anyone had a similar experience?

I have been struggling for a while to decide on a main role. I want to main only one role to maximize my improvement but I can't decide between on flash initiators (Kayo and Skye) and controller (viper, omen, astra, and harbor).