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 The amount can be easily withdrawn from Apple Pay in your bank account.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