How do partial refunds work?

I want to know what happens with my payments when a full refund is processed

Refunds are applied to your fourth and final installment payment first, then to your third, and so on until the full refund amount has been credited/issued back to you.

Please see an example of how partial refunds work with Zip:

The order total for Zip Order #987654 is $200.00. The first installment of $50.00 was charged upfront when the order was placed, and the remaining three installments have not yet been paid.

Starting Payment Schedule:

Now let's say that you contacted the merchant and they have confirmed that you are eligible for a partial refund. You then initiate a return for the items totaling $160.00. In this scenario, Zip would cancel the remaining installments and credit $10 back to your original payment method.

Adjusted payment schedule