Anxious about certificates!

Hi, first time user of Student room, so far I have found it so helpful!
I am applying to a foundation year at Sussex as a mature student.
I left school in 2010 and my GCSE certificates have been lost in a move.
I am unable to order new ones due to money problems, saving my last 12 pound in the world for my UCAS application!
I am 98% sure I know all my results, having used them on my Cv, but am unsure as to which exam boards I was entered under.
As a mature student I have heard that my certificates aren't the most important thing they are looking for, but will I have to bring them to an interview, or need them at all, I've heard mixed things.
Thank you.
Quite anxious!

Of course they are important - you will have to produce them at some point.
Also if you are that skint do you really think you should be starting at university at the moment. *

Hello! I am only this skint as I have had lots of outgoings this month! I do have a full time job and as I understand it, a good support system and a plan in place for Uni. I have also completed a level 3 apprenticeship whilst working full time.
Obviously I intend to leave my work before I start uni and find some part time work I can fit around my uni work, but sometimes money doesn't just 'Flow' in for unexpected certificates.
I am happy to produce the certificates at 'some point' but won't be able to before I apply, only after. As I have to apply quite early as a mature student.
I don't think money should stop me from getting a higher education, I won't be starting until next year and have a good plan of action.
But it's good to here that you're not saying at you MUST PRODUCE THEM, but that at somepoint I will, which calms me a lot!