Hello,
I purchased a 4-day Interrail pass in May which was valid for 1 month with which I was able to travel on 3 days with no problem. I returned from Hamburg yesterday and wanted to download the 2D barcode for my 4th day but the APP indicated that I had used all 4 days.
On the APP it was indicated that I had one more day on my pass but since the barcode could not be downloaded, I had to buy a separate ticket since DB could not help.
how could I be compensated for this trouble caused by the APP?
Thank you for your help!