I have 70 points in stage one and exchanged a showdown card and didn't receive any points for my team affinity.
did you exchange stage 2 vouchers?
I think I did it on stage 1 and it didn't give me any points. I already had 70/70. If that is the case it shouldn't have took my showdown card in exchange.
If you’re at 70/70 the stage 1 showdown vouchers don’t do anything for you. Gotta do the stage 2 showdown at that point.
If at 70 and have stage 1 showdown vouchers, they need to go toward other teams, or exchange them for packs in the exchange tab.