Problems with my Samsung monitor just purchased. M...

Problems with my Samsung monitor just purchased. Merchant Amazon can not help. Samsung Helpdesk does not work on the weekend. Called on Monday - wrong employee, but colleague calls back at 12.30. He does not. Called again + learned 12.30 means 12.30 in 30 minutes. Now I'm waiting again - more than 30 minutes. No call, no help and the part goes back. How the device so the service - significant weaknesses