Zero service from Fedex after 2 months

I don't often write bad reports about companies but this time I simply cannot say enough bad things about Fedex in Joburg. Someone in the USA sent me a small electric motor for model planes to test for him as it would not work with a gadget that I designed for them. He has many of these particular motors that he sells so he decided to send me one using Fedex. The paperwork was marked Test Sample, and it arrived on the 15th of May at OR Tambo. Unfortunately customs pulled it out to check it and wanted more info because there was no invoice due to the fact that its a test sample. I wrote to them to explain and they did not accept the story so then the sender from the USA wrote to them with all of the details including the retail price. Just btw, there is no customs duty on toy or model goods. Once again our *****ed customs people did not accept this either and then informed me via Fedex that I would need to pay a R1500.00 penalty. I then agreed to pay this although that is blatant *****, and I still do not have my parcel and the Fedex agent Mr Shimane Kau barely contacts me at all. I have emailed, phoned and tried to get anyone in a senior position to simply help me with this tiny dirt cheap parcel and nobody ever gets back to me. This is shocking for such a big company!