I see. Yeah this is known as "debt peonage." It also exists in the Gulf States of the Middle East in the form of the Kafala System where they use imported servitude from the Subcontinent/South Asia. It's how the World Cup will be able to played in Quatar this year. See:

https://www.cfr.org/backgrounder/what-kafala-system

and

https://www.amnesty.org/en/latest/campaigns/2019/02/reality-...

and

https://humantraffickingsearch.org/kafala-system/