Deactivating and Reactivating CS6. Woe is me...

I purchased a perpetual license for  CS6 Design and Web Prem in 2012. No doubt over the years I changed PCs, scrapped older ones and reinstalled on replacements. Today I downloaded the suite from my account on Adobe and activated Acrobat. Photoshop however proved impossible to activate (too many computers error message). Adobe support says I am SOL. How can I possibly deactivate on my defunct and scrapped computers? Can Adobe do this? Any help appreciated...