Fedex is a no-show

I am very VERY unhappy with Fedex. I have a package that should have been delivered more than a month ago. Even though there were custom requirements (according to the tracking) for details from myself 3 weeks ago, no one contacted me in this regard - I happened to see it on my tracking. I got the details needed through to Fedex the same day with great difficulty of my own accord. I have attempted to contact Fedex many times by e-mail, chat and calls. I have only been successful very few times - it’s near impossible to get through and when you do nothing changes. My package has all necessary info, has been marked as urgent and expedited apparently. Someone was supposed to come back to me. No one ever did. If they can just communicate it would be something. Their customer care number (South Africa) is supposed to be 24/7 - but its business hours and Saturday Mornings. Their chat is business hours and even then it is not always operational. Based in this and previous experiences with Fedex I hope to never have to make use of Fedex again.