If you received the text message, that means you are safe. It does happen, once in a while. I doubt they have your password, but never hurts to update, on a regular basis.

Check all your account settings, bank, credit card, email addresses, etc… and if you are a Pro seller, check your User Permissions, for any unusual entries.

that can’t be a good thing.

Sounds like somebody has your password and is trying to log in. Change your password immediately and re-check all your baking and other information ASAP.

There are ways they can re-route your phone number and intercept the text messages so if they can do that before you change your password you could be in trouble.

so I called Amazon seller support:

1st call: couldn’t understand Amazon representative’s English, asked to be handed over to someone who has spoken English longer, he asked me to call back and open a new case

2nd call: next representative asked for a screenshot and did some research on Google and found that the SMS indeed came from Amazon and is an account used to provide shipping updates. I said that had nothing to do with my issue about receiving a strange security code. He said he would forward my case to Amazon’s security people for further investigation and “not to worry” it will never happen again. I replied that it is a feature of logging in to my account so how would I never receive it again? He said yes and repeated that he will forward my case to another department and that I will receive a survey about the call and please don’t hold it against him.

So I’m waiting to hear back and will update this when I do.

Someone got hold of your password. Change it right now! If you shared that pass with other accounts, change them too.