With the release of the version Beta 2 and iOS 11.2, Apple added the "preview" version of the application Apple Pay in Messages. Money calls can be sent and received through a simple message in the conversation of the recipient of the money. The condition is to have a credit card or debit card added to the service Apple Pay. Valid for both the recipient and the sender of the money.
Prothe cessation lasts very little, and the money is safe. The amount can be easily withdrawn from Apple Pay in bank account.
Currently this service is not available in all countries. Apple constantly updates the list of countries and banks that are accepted in Apple Pay.