Unprofessional and no clear comms and unreachable

Buffalo International Logistics is the worst company to deal with ,I ordered clothes from Shein,Shein confirmed delivery in South Africa two weeks ago to Buffalo. They have been sending message that does not make sense, saying have delivered the parcel while they have not.Have not received communication from them except for the message saying they have delivered my parcel while they have not.Im starting to believe they are big ****mers ,that have no integrity and poor comms. They are not contactable which is very frustrating, when calling you are provided a whatsapp number which you get no response from once messaged the number.