I managed to get around that recently using a different method. Rather than using my own SIM, I went for a virtual number that supports Amazon’s verification process. Here’s a post that really helped me through it: https://esimplus.me/blog/how-to-verify-amazon-account-without-phone-number. The key is finding a service that Amazon doesn’t immediately block or flag as suspicious. After registering the virtual number, I added it during sign-up, got the verification code instantly, and completed the setup with no issues. Since then, I’ve even placed orders and accessed Prime content, so it’s held up just fine. It’s a clean workaround if privacy is your main concern.