blackjack table showed 3:2 rules but natural paid like 6:5

so i was grinding blackjack for a while last night, picked a table with the sign that said “blackjack pays 3,2” like always. played a few hands, hit a natural and then noticed my payout was the same as it is on a 6,5 table. definitely double checked the felt before i sat and it was clearly marked. the dealer just kinda shrugged and said it’s what the system does.

i didn’t want to cause a big scene, but has anyone ever had this happen at a real table before? i know we’re always supposed to double check the rules but what do you even do when the signage and the actual payout don’t match up? really debating if i should say something or just chalk it up to bad luck.