Debilitating working with FedEx ! Nothing will come of this Complaint

Where do I begin. Using FedEx has been the most debilitating experience I have ever had with a service provider. I always drive to the Midrand to collect my own parcels because they never send any invoices for customs payment. Now Im expecting 1 parcel ( nobody has contacted me again) and SSA pappwrk has contacted me for details for a 2nd parcel I’m not expecting AND ZA Rod sent me request for payment for a 3rd parcel that hasn’t even been collected ? I just don’t know anymore. Jolene from Midrand branch promised to assist us in future as she sees how we come to collect our parcels all the time. You contact her now and she doesn’t respond as well. How can I be expecting only one shipment but FedEx contacts me for other shipments not even collected ?