Before you resend: do these two checks
First, confirm your phone number format and that your device time is correct. Second, stabilize your network. Rapid tapping on “resend OTP” can trigger throttling and make delivery slower. A short pause often beats ten quick resends.
SMS filters and device settings (often ignored)
Check if your SMS app filters messages. Also confirm you can receive other SMS normally. If you recently enabled aggressive spam protection, OTP messages can be hidden. If you’re using dual SIM, confirm which SIM is registered for OTP delivery.
When OTP arrives late
Late OTP is still usable if it matches the current attempt. If verification fails repeatedly, stop switching networks mid-step, update the app, and retry with a stable connection. If it still fails, contact official support with time, carrier, and screenshots.