That is not always true.
I have had several planning applications in the past that i have had to withdraw at a late stage as a specific survey was requested. Recently a bat survey was requested in week 7, meaning i had to withdraw the application and resubmit.
What happens when you withdraw? Do you get the fee back? When you re-submit can you re-use the fee?
I have never had to do this and can't you say that the request for information is not possible within the time frame and appeal after non-determination?