public function getPromoUrlForProfessionalServices($campaignMedium, $campaignContent = '')
{
$url = 'https://piwik.org/consulting/?';
$campaign = $this->getCampaignParametersForPromoUrl($name = self::CAMPAIGN_NAME_PROFESSIONAL_SERVICES, $campaignMedium, $campaignContent);
return $url . $campaign;
}