Great company bad courier

Shein delivers clothes fast and most of the orders I have gotten were good quality, only problem I have is with the courier they use, buffalo logistics. Shein will tell the in the next 2-3 days they delivered but buffalo will only bring it 1-2 weeks later like what??? Then you gotta pay customs which personally have been R600-R800 which is kinda sad but overall shein in good my beef is with buffalo logistics