Pathetic Service From Temu

Ordered on 28 July. Paid duty tax on 5 Aug to GFS now Fastways wants duty tax for the same parcel before they deliver it. How can I pay duty tax for 1 parcel at two courier services. Called GFS the tell me I'll get my parcel it's at JHB warehouse. Still showing on temu app duty fee outstanding. GFS is annoying have excuses every time I call the..