The words that blockchain used will not work with electrum or anything else.
At this point if you don't have the file that was created there is not much that can be done.
-Dave
so basically any bitcoin I had in that wallet is gone forever because their system doesn't recognize their own v3 slip39 mnemonic words? there is absolutely nothing I can do at all besides short of guessing the 2nd password? you don't know of any legit companies that could be of help?
Did you their recovery?
https://login.blockchain.com/beta/legacy-pages/forgot-password.html
Without the actual wallet file itself I don't know of any services that would be able to do anything.
-Dave