I'm confident this is not consumer error, Considering that the recovery phrase was located in two unique spots: backed up inside of a file on S3, and printed with a piece of paper. Standard recovery phrases use a specific list of 2048 words pursuing the BIP39 standard (Bitcoin Enhancement Proposal https://bookmarkforce.com/story18909985/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting