Poor service and no feedback

My order arrived in Cape Town 31 July 2025 from shein, china. After 12 days still no delivery despite receiving message the parcel was out for delivery. Called the call centre 3 times, was promised feedback on all 3 occaisions, still none up until today 12 Aug 2025. The whatsapp app is useless, the auto call system is so distorted, can hardly hear an instructuons or directions. Surely it doesn't take 6 working days to deliver from Cape Town? Poor customer service, Sein should seek another more capable and professional shipping/logistic company. People will no longer order due to poor/*********** service felivery