Receipts for extended image purchase?

I purchased six images with an extended license and I would like to use them on a game that I am designing at GameCrafter.com.  The game site requests receipts showing that I have purchased the extended licenses for these images.  But Adobe Stock does not issue such receipts.  My only receipt is a receipt for my payment to the subscription service. The best I can apparently do is to provide the game site with a screen shot of the relevant portions of my license history.

This seems like a very awkward, insecure and potentially time-consuming way of proving my right to the images.  I suppose GameCrafter will accept it, but it seems makeshift.

Since the whole point of a stock photo site is to grant licenses, I think it should be easier to prove to others that one has actually done so, without having to compile a set of screenshots for the purpose.

Is there any other way for me to prove my ownership of my images except by taking screen shots of the releveant portions of my license history?