KT-CT-13716

{
  "errors": [
    {
      "message": "The retention offer group has been revoked.",
      "extensions": {
        "errorType": "VALIDATION",
        "errorDescription": "The offer can't be accepted, because its offer group's agreement rollover has been revoked.",
        "errorCode": "KT-CT-13716"
      }
    }
  ]
}