Go to Settings > Touch ID & Passcode. On devices without Touch ID, go to Settings > Passcode: Tap Turn Passcode On. Enter a six-digit passcode. Or tap Passcode Options to switch to a four-digit numeric code, a custom numeric code, or a custom alphanumeric code. Enter your passcode again to confirm it and activate it.
Wales uses the same currency as the rest of the United Kingdom, the British Pound Sterling.
There are no Welsh banknotes in circulation; Bank of England notes are used throughout Wales. The last Welsh banknotes were withdrawn in 1908 upon the closure of the last Welsh bank, the North and South Wales Bank.