Questions about Planning Application 17/00280/VAR

What date was it registered? I think it wasn't on the Wiltshire Website until the last week of March 2017 but the document claims to have been Registered on 23rd January 2017

And it appears on the Weekly List for 23rd January

But the search function on the Wiltshire website says it was registered on 23rd March

And the Document properties also show 23rd March

And the MOD were sent the documents on the 23rd of March as well

Which ties in better with the consultation period.

But English Heritage are asking for a year's grace prior to opening the path by the 1st October 2017 - so why the delay in asking for permission?