Amazon Login Error Problem

I've been using Amazon Shopping for a while. For a few years, I've been overseas and haven't used my account during this time. Now that I've wanted to use my account on Amazon Türkiye, it asks me to enter a code which is sent to my Turkish number, which I don't have access to anymore. So, to try and fix this issue, I'm trying to contact Amazon Türkiye, but when I try both on mobile apps and the homepage, it redirects me to the login page. The issue I've been having is related to login, that I'm unable to do, but the system redirects me to login even though I'm not able to. What kind of joke of a loop is that? I want Amazon Türkiye to be able to solve that issue somehow because in case someone else started using that phone number, they'd be able to see all my detailed information, which I want to prevent at any cost.