Unreliable service

I had a parcel sent from the USA to South Africa in early August. FedEx requested my invoice and ID, which I emailed within 24 hours. When I followed up, they said only a few steps remained. Since then, the staff member has ignored all my calls and emails. Now the sender is being told the parcel cannot be cleared because the recipient supposedly didn't send their details, and it will either be returned or destroyed. Extremely unprofessional and dishonest service-I would never use FedEx again.