Tax return request for 2022/2023 confused?

Hi my wife has received a letter saying she needs to complete a tax return for 2022/2023 she has registered for self assessment for 2023/2024 as she did have some self employed income in 2023. But nothing in 2022, the letter says she has 3months to submit a return for this period, but it will be £0.00 except what she earnt PAYE. Is she best calling HMRC and telling them she didn't do any self employed work in 2022/2023 or complete the return at £0.00?

Hi, Your wife can check if she meets Self Assessment criteria at:
Check if you need to send a Self Assessment tax return
If the criteria is not met for 2022/23 then she can contact HMRC to review and cancel the tax return:
Self Assessment: general enquiries
Thank you.