1. As CWS said you can view visit history in the APP but you can also view it online which may be easier to view
2a You'll just have to manually view your visit history and if you feel something should have involved a charge you'll have to see if the corresponding card was charge.
2b why worry about something that was a mistake of the person. Don't make that mistake.
3. My app number is missing the last digit of my PP card number.