I hadn't logged on since last season so when I signed on yesterday, I noticed there was a bunch of changes made to the app.
One in particular is a trade certification feature. If you are not certified, you cannot send trades. Because I hadn't been logged on in the prior 6 months to the update I was not given a certified status. I sent a message to CS last night and was certified a little while later. This morning, I wake up and my certification has been removed with no reason given.
Without this certification I can't trade for the cards I need to stay competitive in contests, which is a feature I used almost every day last season. What a disappointment. I will never spent real money on this app again. And I will be uninstalling.