Volunteers were only collecting donations during office hours. There was no way to give by card early or late in the evening, and the ATMs were not accessible, so the donations simply did not happen.
The hardware to accept a contactless payment is affordable. What was missing was software that could put it on a screen, run it unattended, remotely change content where needed and keep it working from a distance.
That is what Penny Cloud does. It started with donations, and it turned out that a food truck, an estate agent's window and a church all want the same thing: a screen that does its job when nobody is standing next to it.