If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: SmsYM4u6tNWtTNe4A8pYcvxTbVPffdHGTLBTCGYu6qNyjYuKKQiCBZme6yivgfWYbKvugc1fLSSyd59Bmq3atjpQRi1U9vXRieEBfN3JzNjvCkbmJRHqz9vTz2jZ6z8dbfDhCFUZrUbgpmx6bwTAe6s5QuB1zAJ
You can also try to pass an automatic check but with no guarantee.