nicholson
In principle yes, the limiting factors will be how quickly a Decision is made on your award, and how quickly you can supply the information.
Unfortunately, Decisions have been so erratic, that I wouldn't want to say categorically, that the Decision Maker would wait for the evidence to be provided, although I would hope that they do so for a reasonable period.
Sorry that I can't be more precise.
Gordon
Nothing on this board constitutes legal advice - always consult a professional about specific problems