If you are a business account and your company has a VAT number that is VIES valid, then 0% VAT will be applied to your orders done with PayPal Delivery powered by Packlink. Verify the validity of your VAT number from the EU VIES:
To set up your PayPal Delivery account as business go to bulk shipping:
If the company VAT number comes as valid, for all your future invoices the reverse charge mechanism will be applied.
Therefore, your invoices will have 0% VAT. Remember that changes are not retroactive and can only be applied to future invoices. For more information about the reverse charge mechanism click here: https://www.gov.uk/guidance/vat-imports-acquisitions-and-purchases-from-abroad