Thanks for visiting our forum, @liezel-matthew,
When accounting for acquisitions on VAT Returns, use EU when setting up a VAT item. This is pre-created in QuickBooks when VAT is enabled.
The process of recording is the same as UK Suppliers. Use the 20.0% ECG VAT Code for qualifying transactions. The system will calculate both sides of the Reverse Charge so it shows both +20% and -20% below the Subtotal. See this:
Using the right code will help you report the acquisitions correctly on the return. See this article to learn more about this: Common VAT Codes.
Furthermore, you can always contact HMRC and inquire with them, or reach out to your accountant for additional guidance.
Let me know if this clarifies everything or if you need further help. I'll be around to help. Have a wonderful day!