Card Manger

I have been using the app for quite some time. For security reasons I turn my card on and off as I use it. The app DOES NOT consistently work and I have been put in multiple situations where I need to use my card to buy something or get gas and I was unable to cause the app wouldn’t work for me to turn my card on. Someone NEEDS TO DESPERATELY FIX THIS CAUSE IT IS COMPLETELY RIDICULOUS FOR SOMEONE TO GET STRANDED SOMEWHERE AND CANNOT USE THEIR CARD CAUSE THE APP WOULD NOT WORK FOR THEM TO BE ABLE TO TURN THEIR CARD ON!!! Fix this PROBLEM PLEASE!