Why the “money debt” , by credit, is NOT destroyed when paid ????

Many people think the money amount created by the credit is destroyed, once the credit is paid with interests !!! FALSE

 A bank creates, by credit, a virtual amount of money …. backed by a prospective wealth in the future !!!  and includes interests, not even created. 

The money to pay the credit is found in others’ pockets, their wealth already exists!!! and this money created as a credit, by the bank is paid as cash !!!