Worst customer service ever.

My shipment arrived in Johannesburg on May 4th 2020, still to date I have not received it. The last call I got was from a guy named John on 7th May, wanting my Id number. Last week when I sent an email asking about the update, Barbara asked Zanele to send me an invoice of R450 which I payed to a Nedbank account they given me, and they all went quiet. When tracking my parcel, it's still held for customs after I had payed for custom clearance, you people are the worst service providers and you have zero respect for you clients.