I messed up

So I was checking out the sbc and I put all my cards for one challenge, redeem your card to get points towards to challenge. So I did the challenge not realizing I won’t have enough players to play the beta. Can someone help me out the only way I can get a pack is by completing a Evo in rush and no one is playing that game mode I’ve been searching for a match for 10 mins now. I just need 2 cards in my bench to be able to play help me EA.