The country has one of the highest levels of consumer debt in the world as a proportion of its GDP.
We hear from people who have borrowed and can't pay back. They're struggling to get regular work to make payments and cover interest.
We also speak to a private money lender - are they helping people or making the problem worse?
Produced and presented by Ed Butler
(Image: Jie Ae Nattarin, a money lender in Thailand wearing her trademark headband)