Fedex making empty promises and delivering shocking service

Fedex is utterly useless and disappointing. My package was originally supposed to be here on the 17th of December. It was received at the Cape Town facility on the 16th and had to change the delivery address due to the fact that I was on leave by then and no longer at work. I contacted them multiple times to both confirm the address change as well as the delivery date which was delayed due to the address change which was already unfair. It was supposed to be delivered today (After confirming multiple times as well as on an email sent to the CT branch as it includes Christmas presents so needed it urgently). Parcel was scanned out at 07h15 for delivery today. I phoned twice today, once just past 5 to confirm delivery is still happening, firstly a Supervisor was going to contact me to let me know whether I'm getting it or not, never did, then I got a update to say the parcel was checked BACK in at the courier facility at 17h48. Delivery is supposed to be until 18h00. So firstly it's delayed because of the change, then it's back at the facility before cut off time so there was enough time to do the delivery. I called again as soon as I saw it was back at the facility, they couldn't get hold of CT logistics team and a Manager was going to phone me. Once again, still waiting.