Weird text message through S3 from Note 8 (AT&T SYNC) Help

[jaredherrera91]

I don't know where to post this really, but I'm going to cut straight to the point. I'm a little creeped out. I'm sure most of you are familiar with AT&T Sync and how the two devices (The Gear S3 and the Note 8) have a sim card in each device. But if you have your Gear 3 connected to Bluetooth it disconnects the LTE data. Well first off I disconnect it every once in a while for Bluetooth connectivity problems such as connecting my speaker. So the Gear s3 automatically enables the LTE data when Bluetooth is off. So now that we've got that out of the way. I disconnected it around 11 tonight and I got a text message notification on my Gear S3 from my sister. It said "In the blue box you need to email your information." So my first thought was she was asking about the Netflix account the other day.

No, she didn't message me at all. Also to point out that my S3 has a different phone number than my Note 8.
And that the message deleted itself from my phone and the S3. So the message is nowhere to be found on both devices except the notification that shows the text. Weird huh? Should I go to AT&T about this? I'm posting screenshots also to see if anyone can figure this out.

 

[B. Diddy]

Hope you don't mind -- I moved this from the Oreo forum to the Gear S3 forum, since that seems to be a more appropriate forum.

 

[neopolotin75]

Did you check messages.att.net? Att grabs all your messages and stores them so you can access via computer

 

[Mattman86]

Did she message you about that any time since you last had the watch connected to LTE?

When I disconnect mine, it begins to blow up catching up on all the messages that have been synced to the watches number via NumberSync. Sometimes, I'll get messages from my wife from a week ago.