So forgive me for just being a slave to the downvotes, but this is the daily reminder to think critically. What I'd like to know from this user to clarify what's happening here is whether they are a Google Pay user, and if they have "Show bills & receipts from Gmail" enabled in Google Pay. It defaults to off, for what it's worth, but if you enable the feature it might have the effect of pinning this data even if the source emails are deleted.