Poor service

The service is very poor, I was supposed to receive my parcel on the 10th of May and I didn't so I called the third party (skynet) on the 14th to ask about my parcel and they said it was hijacked.So I called the buffalo company to address them about the matter, and they said I should wait until the 20th they still going to investigate, only for them to sent me an email that says my parcel was delivered.that time I didn't receive anything ,I was still waiting for their investigation feedback cause they did confirm that my parcel was indeed hijacked.Today 21st May I called them again to ask what is their email supposed to mean cause I didn't receive my parcel yoh that agent was very rude she even hung up my call while I was still trying to explain my situation.