If you don't receive OTP or Verification Code on Idea SIM on your iPhone.
So in this blog, I am going to tell you how to solve this problem. If you want to know then read the blog carefully. First, Restart your iPhone. Go to your iPhone's Settings. Then go to General. Then go to Software Update. If there is any update install it first. Sometimes your iPhone is not updated that's why the problem of OTP or Verification Code not received is happening. So update your iPhone. Then go to Messages and check OTP or Verification Code is being received or not.