NO Buffalo service delivery

Yesterday on 6 January my order was sent out for delivery at 7:00. I stayed home awaiting my parcel. At 10:45 I got a call, and when I reached my phone the call went dead. I immediately returned the call, got a message "telephone number not available at the moment", went ouside, nobody there. I wasn't sure if the call was from Buffalo, so kept waiting. Later the evening I tracked my parcel and I got a message it was returned to depot due to no answer. Really???? They have a useless WhatsApp with repetitive messages, no intelligence. I've tried emailing , WhatsApp and calling. The lady at the customer service confirmed that the courier dont accept calls, and the parcel was therefore returned with a message " no answer". How pathetic, no proper effort was made to deliver it. Their customer service is shocking, they dont know how to make appointments or deal with clients. The same clients which is indirectly providing food on their tables. It seems to me that Buffalo are chasing orders to make them look good on paper. Shame on you! Why are companies still making use of their poor poor service delivery?