Delayed project - no apologies

I've got three parcels coming in from the States, the first one got stuck in clearing. My parcel has been stuck in customs from 16/08/2017. We received a customs duty invoice on the 17th and paid on the 18th. I proof of our importers code on the 14th and 16th, we then receive another request for the same document, which I resent on Friday 22nd. Each day I call in to the call center and get told that Shannen or Chrissan will call be back, neither of them do. I get told that the same document (sent to Fedex on 14th, 16th and 22nd) was only submitted to customs on the 24th. Each day I call in and ask what is happening as we have a build that is waiting on this parcel. The first reply I get to numerous emails is on the 28th stating that Fedex gave the wrong code to Customs and are now liable for a fine and our parcel is stuck because of this. I get told payment will be done on the 29th. No reply to my next email or call. Following email on the 30th I get told it will be paid on that date... It's now a new month and I still have no feed back. Again the call center says I can expect a call from Fedex, again I wait for a response. I've received one (half hearted) apology on email, and an attitude that states I should stop bugging these people. I have a build waiting on a parcel that has been sitting in customs for two weeks due to late and misinformation supp**** by Fedex to SARS. The lack of service delivery, lack of care, and lack of interest in the problems that Fedex has caused for our company and project is shocking.