https://wccftech.com/apple-pay-cash-is-now-available-for-ios-11-2-users/

Apple seeded its ioS 11.2 firmware not so long ago that featured various forward facing additions as well as under the hood improvements. In addition to this, the update also addressed a serious date bug that was affecting some users on December 2. Moreover, even though Apple has already introduced the Apple Pay Cash, the feature was not yet activated and was not available to the general public. Now, with iOS 11.2, Apple Pay Cash is now live for iOS 11.2 users. So let’s dive in to see some more details on the matter.

Apple Pay Cash was not usable because the company had not yet activated it. Apple Pay Cash is now officially available in the United States and available for all iPhone and iPad owners running iOS 11.2 on their devices. If you’re an iPhone user and have updated to iOS 11.2 but not seeing the Apple Pay Cash feature, do not be alarmed, it will take a bit of time before the company rolls it out to everyone.