TikTok Sends Verification Codes at Night Without My Gmail Linked to Any Account

I keep getting TikTok verification codes sent to my Gmail accounts, even though I don’t have a TikTok account connected to those emails. It’s annoying that these codes come in the middle of the night, usually around 3 or 4 a.m., and it messes up my sleep. I’ve gotten them on various days, and they always go to my Gmail accounts. I'm curious whether there's a security issue with Google or if TikTok's system is being taken advantage of. I’m worried about the possible dangers to my personal information. It would be great if TikTok and Google could look into this issue carefully and come up with a solution to stop any more problems from happening.