As larabee said, if youre applying from within the UK, you'd either need to upload these to the website yourself or pay for the service. If you are in the UK, it sounds like you may not have paid for the service so wouldve needed to do this yourself... unfortunately, (not to make you prematurely panic) you may not have a chance to now as i believe the person at the appointment submits the documents to HO so you needed to upload before that point (unless somebody else can confirm this isnt the case as i was lead to believe). Hopefully if this happened, HO would contact you assuming there was an error and ask for a copy.
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