Poor customer service

I still have not received my package. I was sent emails that the package was refused at the and I was shocked because I didn't receive any call from the delivery. Even after sending a different address to Ubuy nothing was done. They kept undating the system with the same messages. I contacted DHL to change the address from my place of work to residential, and found out they did not have my contact number. Its been over 10 days since the change of address and I still have not received my package or a response.