Disaster Operation

If the Tablet has failed, you can run everything from a mobile phone (in landscape).
The Url is on the back of the username/password bit of paper in the small plastic dongle box.
This will still call the Sumup machine.

If the Sumup machine has failed, then you can still take card payments using the website (see screenshot below).
It's a bit slower because customers need to enter their card details rather than just swipe the card.
To speed up the process, all customers could do this in parallel on their own phones.
The Url is edinburghjazz.com (or google for Edinburgh Jazz Jive)

After Door App has recovered:
The Member draw is then all ready to go.