Redeeming various sets error "Our Servers Cannot process your request"

I have the same issue and have not received a response on previous post about this issue. EA is ignoring it. A solution was found on reddit. The cause is using cards which have been previously upgraded. 

I'm continuing the bring this up, because we shouldn't have to use a broken game. If they don't fix it I'll doo everything I can legally do to get all of my money back.