# Troubleshoot guide

## ✅ SMS Not Arriving? Try These Steps

1. **Switch to Wi-Fi (or a different network)**. If you’re on mobile data, connect to a stable Wi-Fi network and try again. (Network filters can block OTPs.)
2. **Use the official app from the App Store/Google Play.** Open the official WhatsApp/Telegram/etc. app (not web versions or clones), and request the code there.
3. **Match location with the number (VPN tip)**. If your current location is different from your phone number’s country, some services (especially WhatsApp) may refuse to send SMS.

**Turn on a VPN set to the number’s country (e.g., number = Estonia → VPN = Estonia).**

While VPN is on, reopen the official app and request the code again.

4. **Check Google Services location permissions (Android only).** Google Services may share your real location with apps, blocking SMS from virtual numbers.

* Go to Settings → Apps → Show System Apps → Google Services
* Deny all location permissions
* Restart WhatsApp and try again

Wait a few minutes, then retry **(don’t spam requests)**. Many services rate-limit OTP requests. If you clicked “Send code” many times, wait 30–60 minutes (sometimes until the next day) before trying again.