My Spore disc's product code is already in use???

I'm having the issue that I can't link my CD product code to my EA account. It says it is already in use.
For the record, I own Spore on a disc. Bought it back in 2009.
This was never an issue when I had a disc tray, but now with my new pc I don't have one.

The expansion packs are also onb discs and those I could link just fine.

Is there a way my game can just be added to my library?

(I can provide a photo of my physical game, should it be needed)