I'm not Welsh but sure you don't mind me commenting. English here and just to let you know Google pay stopped working due to beta unsigned software being installed. It will be okay once the gold release software is released next month 👍😂
As long as the binary is not certified by Google, Google Pay will not work. Usually, only the official version (once the Beta ends) is certified, so until then you can try to use Samsung Pay instead 😉.