Yes, you can still apply for a refund for your purchase when you use Uquid Pay in 3. 

If you return some or all of your items according to your legal statutory rights and/or the refund policy, you’ll get a partial or full refund. 

Partial refunds will lower the amount that you owe in the payments you have left. Any refund issued will be paid to your Uquid Balance, once we have repaid any amounts owing under your Pay in 3 plan.