You will no longer be able to top up your Arena Cards online from the start of the second half of the 2019/20 season.
You can pay at all sales outlets inside the Allianz Arena with your debit or credit card, preferably using the contactless method but also by entering your PIN. You can also pay using contactless-enabled devices.
You can use still your existing Arena Card as a means of payment at the Allianz Arena until the end of the 2020/21 season.
Allianz Arena Payment GmbH