Valuation method for goods on Proforma Invoice

Good day all, I have the below situation: A proforma invoice with a total value of 8354 USD, mentioning a total value for customs of 1045 USD. Reason for shipping stated on it : Repair/exchange Which valuation method can be used ?

Hi Which valuation method to use is something you will need to decide by working through the methods sequentially. As the goods are not being exported as the result of a sale method 1 cannot be used https://www.gov.uk/government/collections/working-out-the-customs-value-of-your-imported-goods If goods are being imported for repair then you should consider claiming inward processing relief.

Hi Dumitru Mihalca,
It is out of our remit to offer advice on which valuation method can be used, please review below guidance for more help.
Prepare to work out the customs value of your imported goods
Thank you.