Hi I took an Uber on Monday and I wasn't charged for it for some reason. I looked at the app today and see that it says my card was invalid. But my card works perfectly fine. I was even able to buy other things with it. Just in case I put more money in my account to see if it would change but nothing did. I don't even see it on my bank account. I usually see the charges before but it never showed up on their either.