1st june can check for cashback? usually it only get updated on the 2nd of the month.

have you recheck again today?
guess maybank also identify based on "merchant descriptor" name, e.g. PSS or Petronas. somehow they (still) dont qualify "Setel" as eligible txn.

even their promo page doesnt purposely promote "maybank" as having petrol cashback from their cards >> https://www.setel.my/promotion/card-cashback