Security Patch for March, 2019

Hello everyone. I would like to ask about the security patch for March of 2019. I'm a user of Galaxy S8+ model and there was no security patch for March for me (although it would always be available at the end of each month). I looked it up on Google and it seems like this model should've received the patch. Is there any reason that I didn't recieve it? What is the status on the end of other S8+ users? Let me know.