Import duty refund on returned goods

Hello. I have recently ordered a number of dresses from a company in the US. I ordered more than I needed for choice. When they arrived in the UK I was required to pay import duty. However none of the dresses fitted so I have returned them all. So my question is, Can I request a refund on these taxes now that they have been returned? If so, how do I do this? Thank you.

Yes https://www.gov.uk/guidance/how-to-apply-for-a-repayment-of-import-duty-and-vat-if-youve-overpaid-c285 There is a different process if your import was by post https://www.gov.uk/government/publications/vat-customs-dutyimport-vat-relating-to-imports-by-post-bor286

Hi,
Yes, you can look into claiming a repayment if you are returning goods. 
Use form BOR286 if you have used Royal Mail or Parcelforce.
Report incorrect Customs Duty or VAT on items imported by post (BOR286)
Use form C285 if you have used any other courier.
How to claim a repayment of import duty and VAT if you've overpaid
Thank you.