A currency trader mends an worn $2 bill at a market.
The BRICS' messaging about de-dollarization could get even messier if Zimbabwe joins the group's bank.
  • A former Zimbabwe finance minister warned of an economic 'disaster' if the country moves away from the dollar.
  • Zimbabwe has applied to join the BRICS bank where there's intense debate about de-dollarization.
  • During an August summit, leaders from the BRICS nations gave contradictory and differing statements about de-dollarization.

Zimbabwe wants to join a bank founded by the BRICS group of emerging nations — but a de-dollarization debate has started even before the country's application has been approved.