Service horrible, customers are not priority. Racial issues, delivery not on time depending on their moods

I have a delivery on Friday but I missed the courier call when their client service got hold of me and I confirmed that I was home that was after 15-20mins after the couriers call. Then I called the missed call number since I didn't know who it was the courier guy was very rude he said to me when a black man calls I ignore their call but when white people call I respond when I tried to reason with him he hanged up the phone. I then called their client service to report that incident but the consultant was not friendly at all instead she kept my call on hold without explaining to me the net step. Then I received no delivery till today, I honestly think they wanted to be spiteful. I'm really disappointed and dissatisfied about their service. Unprofessional and couriers have racial issues