Keep on receiving Late Tax Return reminders

Hi, I have already submitted Tax Return form 2022 in Mar, but received late tax return reminder in Jul. I resent the form in Jul and again just receive late tax return reminder in Aug. I've just resent the form and all DHL track and trace evidence. Would you please advise how to confirm the recipeint and close the case ? thank you.

Hi KLam,
If you click 'Ask HMRC Online' and request to speak with an adviser, you will be put into the queue for Webchat and we can check your record.
Self Assessment: general enquiries
Thank you.