public function fix($mobileOrCarrier) {
    // If instance of carrier
    if ($mobileOrCarrier instanceof Carrier) {
      // Use
      $this->carrier = $mobileOrCarrier;
    }
    // If instance of mobile
    elseif ($mobileOrCarrier instanceof Mobile) {
      // Get carrier
      $this->carrier = $mobileOrCarrier->carrier;
    }
    // Else 
    else {
      // Get carrier
      $this->carrier =  Loader::mobile($mobileOrCarrier)->carrier;
    }
    // Adjust and return
    return $this->adjust();
  }