I bought my Taycan 4S 4 days ago. The App would not work. After many phone calls to the dealer I finally talked to a Porsche trainer in Atlanta. Turns out I had to go to my Porsche and put the charging and PCM features in my cart and then put my credit card information in. My card was not charged. Apparently if you stay on an Electrify America charger longer than 30 minutes you will see a fee on your credit card- wether or not your car is fully charged. Then I had to check the terms and agreements. Voila. App works perfectly now. 4 days of hard work and the answer was the credit card info! Oh well. I hope this helps other people who had the same issues!