Vat exclusive/inclusive

Hello,

Before Jan 1st any UK address that purchased items - the Unit price showed the Vat Exclusive as one price and the Vat Inclusive as the price of the product in Order details.

However since after Jan 1st 2021 - Any any UK address that purchased items - the Unit price now shows that the Vat Exclusive and the Vat Inclusive are the same price in the Order details.

How can I charge Vat for customers in UK - Based in Ireland - sending shipments from Ireland.

How can I have the vat exclusive and inclusive show different prices as before.

I am not sure if I have the VAT calculations settings correct. I have provided the vat number however I have the following message:

You remain responsible for the creation and provision of VAT invoices for shipments from your Fulfillment by Amazon eligible countries of United Kingdom .

Any help and advice would be greatly appreciated.

Thank you.