Okay that one – Lost all my AnkiWeb decks due to sync
I suspect that situation is different because the data was lost in a sync, as opposed to a deleted account. I’m sure if dae had your data, he’d offer to restore it – he’s usually quick to do that when he can.
I gave you all my best suggestions for where to look for your data. Whether you want to look or not is up to you. If you had no backups anywhere and were relying on AnkiWeb to save your collection forever, I think you’re probably out of luck.