If you are using a VPN or Proxy, please disable them or contact support team. Please provide debug info from textarea below: SmsYanSfh7wBYpkrGXbXZqA2Ff6BAYhuAeX9SRhQAw4pDMZfyTcnumxK3FNRccWJyuyVLGDLME997MDyjXNmNgjEY4HsKs1SxMVGLQo8q4SAamKATPdUTA6WsJtANTNvsRHpZYfSEjVu3GG6QWNgNdvtNDhvccW
You can also try to pass an automatic check but with no guarantee.