Actually the mass merchandiser is referred to Sam's Club or Costco and the like.

Trader Joes probably has not coded its merchant code correctly. The bank has no control on how the merchant identify itself via the merchant code. If you read the small print you would find the explanation of such - that it depends on how the merchant codes the purchase.

I actually had purchases made at Target but paid at the Pharmacy Counter being coded as those categories earned extra points in the past but payment made at regular check out line at the SAME Target did not!

Also Chase promotion the bonus shows up on the next statement or even 2 statements later. It is near impossible to reconcile them even the CSRs admit that many customers are very confused because most think the bonus would show up on the same statement the charges appear. It doesn't. If you are so inclined, you could meticulously add up your grocery spending on Month 1, and then see if the statement of Month 2 has a bonus item that match the approx amount you think you should earn...

My take is, unless you spent a $$$$ so the bonus would be meaningful, else it does not worth the time and effort to play reconciliation.