Where are my Documents Fedex??

I had a very important document sent from Harare, Zimbabwe on Friday the 31st January 2020. It arrived in Johannesburg on Sunday the 2nd of February 2020. On tracking my shipment it seems it has stalled and is now still at the airport??? I get no response from Fedex Call Centre!!! On my tracking of this very important (small) May I add, document, there is a ‘shipment exception’ AND will only be delivered by (maybe) Wednesday 5th January 2020!!! Why is this?? Who on earth can tell me what a ‘shipment exception’ is without sending a GENERIC response!!! Have you lost my document Fedex?? Reading reviews on Hello Peter makes me physically sick! I send documents constantly to Harare with your well known competition. It takes one and a half days!! I’d love a non generic response from you!